{"id":17408,"date":"2021-09-02T17:35:52","date_gmt":"2021-09-02T12:05:52","guid":{"rendered":"https:\/\/apboardsolutions.guru\/?p=17408"},"modified":"2021-09-16T11:52:54","modified_gmt":"2021-09-16T06:22:54","slug":"ap-8th-class-maths-bits-chapter-4","status":"publish","type":"post","link":"https:\/\/apboardsolutions.guru\/ap-8th-class-maths-bits-chapter-4\/","title":{"rendered":"AP 8th Class Maths Bits Chapter 4 Exponents and Powers with Answers"},"content":{"rendered":"

Practice the AP 8th Class Maths Bits with Answers<\/a> Chapter 4 Exponents and Powers on a regular basis so that you can attempt exams with utmost confidence.<\/p>\n

AP State Syllabus 8th Class Maths Bits 4th Lesson Exponents and Powers with Answers<\/h2>\n

Choose the correct answer.<\/span><\/p>\n

Question 1.
\nam<\/sup> \u00d7 bm<\/sup> =
\nA) (\\(\\frac{a}{b}\\))m<\/sup>
\nB) (ab)m<\/sup>
\nC) (\\(\\frac{b}{a}\\))m<\/sup>
\nD) (ab)2m<\/sup>
\nAnswer:
\nB) (ab)m<\/sup><\/p>\n

Question 2.
\n(- 5)-3<\/sup> \u00d7 (- 5)-4<\/sup> =
\nA) (-5)-7<\/sup>
\nB) (-5)7<\/sup>
\nC) \\(\\frac{1}{(5)^{7}}\\)
\nD) \\(\\frac{1}{(-5)^{-7}}\\)
\nAnswer:
\nA) (-5)-7<\/sup><\/p>\n

\"AP<\/p>\n

Question 3.
\nIf 27x – 7<\/sup> = 1 then x =
\nA) 1
\nB) 2
\nC) 0
\nD) 3
\nAnswer:
\nA) 1<\/p>\n

Question 4.
\nThe value of (\\(\\frac{2}{5}\\))-3<\/sup> \u00d7 (\\(\\frac{25}{4}\\))-2\u00a0 <\/sup>=
\nA) \\(\\frac{-5}{2}\\)
\nB) \\(\\frac{-2}{5}\\)
\nC) \\(\\frac{5}{2}\\)
\nD) \\(\\frac{2}{5}\\)
\nAnswer:
\nD) \\(\\frac{2}{5}\\)<\/p>\n

Question 5.
\nWhich of the following is not true ?
\nA) (x-3<\/sup>)2<\/sup> = x-6<\/sup>
\nB) x-2<\/sup> = \u221ax
\nC) \\(\\frac{x^{-3}}{x^{-2}}=\\frac{1}{x}\\)
\nD) x-3<\/sup> \u00d7 x-5<\/sup> = x-8<\/sup>
\nAnswer:
\nB) x-2<\/sup> = \u221ax<\/p>\n

Question 6.
\nThe standard form of 43800000
\nA) 438 \u00d7 108<\/sup>
\nB) \\(\\frac{438}{10^{5}}\\)
\nC) 438 \u00d7 105<\/sup>
\nD) 43.8 \u00d7 10-8<\/sup>
\nAnswer:
\nC) 438 \u00d7 105<\/sup><\/p>\n

Question 7.
\nThe general form of 4.67 \u00d7 104<\/sup> is
\nA) 47670
\nB) 4767000
\nC) 476700
\nD) 46700
\nAnswer:
\nD) 46700<\/p>\n

Question 8.
\nThe standard form of 0.000437 \u00d7 104<\/sup> is ……………………
\nA) 437 \u00d7 105<\/sup>
\nB) 4.37 \u00d7 10
\nC) 473 \u00d7 10-2<\/sup>
\nD) 437 \u00d7 10-2<\/sup>
\nAnswer:
\nD) 437 \u00d7 10-2<\/sup><\/p>\n

Question 9.
\n\\(\\frac{\\mathbf{a}^{m}}{\\mathbf{a}^{m}}\\) = ………………..
\nA) m
\nB) -1
\nC) 1
\nD) a
\nAnswer:
\nC) 1<\/p>\n

\"AP<\/p>\n

Question 10.
\n(\\(\\frac{\\mathbf{a}}{\\mathbf{b}}\\))m<\/sup> = ………………….
\nA) \\(\\frac{a^{m}}{b^{m}}\\)
\nB) \\(\\frac{a^{m}}{b}\\)
\nC) \\(\\frac{a}{b^{m}}\\)
\nD) abm<\/sup>
\nAnswer:
\nA) \\(\\frac{a^{m}}{b^{m}}\\)<\/p>\n

Question 11.
\na-n<\/sup> = ………………
\nA) -an<\/sup>
\nB) \\(\\frac{1}{a^{n}}\\)
\nC) -a
\nD) -na<\/sup>
\nAnswer:
\nB) \\(\\frac{1}{a^{n}}\\)<\/p>\n

Question 12.
\nam<\/sup> \u00d7 a-m<\/sup> = ……………..
\nA) m
\nB) 3
\nC) -1
\nD) 1
\nAnswer:
\nD) 1<\/p>\n

Question 13.
\n(2\u00b0 – 3\u00b0) \u00d7 4\u00b0 = ……………….
\nA) 1
\nB) 0
\nC) – 1
\nD) 1
\nAnswer:
\nB) 0<\/p>\n

Question 14.
\nThe general form of 1.275 \u00d7 103 <\/sup>……………………..
\nA) 1275 \u00d7 10100<\/sup>
\nB) 1257 \u00d7 105<\/sup>
\nC) 1275 \u00d7 10
\nD) 1275
\nAnswer:
\nD) 1275<\/p>\n

Question 15.
\n8x + 1<\/sup> = 1 then x = ………………….
\nA) 1
\nB) – 1
\nC) – 2
\nD) 3
\nAnswer:
\nB) – 1<\/p>\n

Question 16.
\n100\u00b0 = ……………..
\nA) 3
\nB) -1
\nC) 100
\nD) 1
\nAnswer:
\nD) 1<\/p>\n

\"AP<\/p>\n

Question 17.
\n2-4<\/sup> = \\(\\frac{1}{2^{n}}\\) then n = ……………..
\nA) 3
\nB) -3
\nC) 4
\nD) – 4
\nAnswer:
\nC) 4<\/p>\n

Question 18.
\n\\(\\frac{\\mathbf{a}^{\\mathbf{m}}}{\\mathbf{a}^{\\mathbf{n}}}\\) (m < n) = ………………
\nA) \\(\\frac{1}{a^{n-m}}\\)
\nB) an – m<\/sup>
\nC) am<\/sup>
\nD) \\(\\frac{1}{a^{m-n}}\\)
\nAnswer:
\nA) \\(\\frac{1}{a^{n-m}}\\)<\/p>\n

Question 19.
\na \u00d7 a \u00d7 a \u00d7 ………………… 2016 times ………………
\nA) 2016 a
\nB) a2016<\/sup>
\nC) 2016a<\/sup>
\nD) 2106a \u00d7 a<\/sup>
\nAnswer:
\nB) a2016<\/sup><\/p>\n

Question 20.
\n2-1<\/sup> + 1-1<\/sup> = ……………..
\nA) \\(\\frac {1}{2}\\)
\nB) 1
\nC) \\(\\frac{3}{4}\\)
\nD) \\(\\frac{3}{2}\\)
\nAnswer:
\nD) \\(\\frac{3}{2}\\)<\/p>\n

Question 21.
\n(100\u00b0 + 2-1<\/sup> + 1-2<\/sup>) \u00f7 2-1<\/sup> = ………………..
\nA) 4
\nB) 3
\nC) -5
\nD) 5
\nAnswer:
\nD) 5<\/p>\n

Question 22.
\n35<\/sup> \u00f7 3-6<\/sup> = ………………….
\nA) 311<\/sup>
\nB) 37<\/sup>
\nC) 38<\/sup>
\nD) 310<\/sup>
\nAnswer:
\nA) 311<\/sup><\/p>\n

Question 23.
\n\\(\\left[\\left(\\frac{2}{5}\\right)^{-1}\\right]^{-1}\\) = ……………….
\nA) \\(\\frac{5}{2}\\)
\nB) \\(\\frac{1}{5}\\)
\nC) \\(\\frac{2}{5}\\)
\nD) \\(\\frac{5}{1}\\)
\nAnswer:
\nC) \\(\\frac{2}{5}\\)<\/p>\n

Question 24.
\n(-2)2<\/sup> = ……………….
\nA) 4
\nB) -4
\nC) 3
\nD) 2
\nAnswer:
\nA) 4<\/p>\n

\"AP<\/p>\n

Question 25.
\na + a + a + …………. n times = ……………..
\nA) na
\nB) an<\/sup>
\nC) \\(\\frac{\\text { na }}{2}\\)
\nD) a
\nAnswer:
\nA) na<\/p>\n

Question 26.
\nReciprocal of (\\(\\frac{-5}{9}\\))99<\/sup> is ……………..
\nA) \\(\\frac{5}{9}\\)
\nB) \\(\\frac{9}{5}\\)
\nC) 999<\/sup>
\nD) None
\nAnswer:
\nD) None<\/p>\n

Question 27.
\nWhich of the following is correct ?
\nA) am<\/sup> \u00d7 a-n<\/sup> = am – n<\/sup>
\nB) am<\/sup> bm<\/sup> = a(b)m<\/sup>
\nC) a0<\/sup> = 1, a = 0 …………….
\nD) (ab)-1<\/sup> = a-1<\/sup>
\nAnswer:
\nA) am<\/sup> \u00d7 a-n<\/sup> = am – n<\/sup><\/p>\n

Question 28.
\n(xy)-2<\/sup>.(xy)2<\/sup> = ……………….
\nA) x
\nB) y2<\/sup>
\nC) xy
\nD) 1
\nAnswer:
\nD) 1<\/p>\n

Question 29.
\nCube of \\(\\frac {-1}{2}\\) = ……………..
\nA) \\(\\frac {1}{8}\\)
\nB) \\(\\frac {-1}{8}\\)
\nC) 8
\nD) -2
\nAnswer:
\nB) \\(\\frac {-1}{8}\\)<\/p>\n

Question 30.
\n(2-2<\/sup>)-3<\/sup> = …………………
\nA) 31
\nB) 60
\nC) 32
\nD) 64
\nAnswer:
\nD) 64<\/p>\n

Question 31.
\na3<\/sup> \u00d7 a-10<\/sup> = …………….. ,
\nA) a10<\/sup>
\nB) a6<\/sup>
\nC) a7<\/sup>
\nD) a-7<\/sup>
\nAnswer:
\nD) a-7<\/sup><\/p>\n

\"AP<\/p>\n

Question 32.
\n7x + 3<\/sup> = 5x + 3<\/sup> then x = ……………….
\nA) – 1
\nB) – 3
\nC) – 4
\nD) 5
\nAnswer:
\nB) – 3<\/p>\n

Question 33.
\n(\\(\\frac {4}{3}\\))-2<\/sup> = ………………
\nA) \\(\\frac{9}{16}\\)
\nB) \\(\\frac{14}{3}\\)
\nC) \\(\\frac{16}{9}\\)
\nD) \\(\\frac{9}{17}\\)
\nAnswer:
\nA) \\(\\frac{9}{16}\\)<\/p>\n

Question 34.
\n(-9)3<\/sup> \u00f7 93<\/sup> = ……………..
\nA) – 1
\nB) 1
\nC) 3
\nD) 2
\nAnswer:
\nA) – 1<\/p>\n

Question 35.
\nx7<\/sup> \u00f7 x12<\/sup> = ……………….
\nA) x5<\/sup>
\nB) x-5<\/sup>
\nC) x6<\/sup>
\nD) x7<\/sup>
\nAnswer:
\nB) x-5<\/sup><\/p>\n

Question 36.
\n(\\(\\frac{1}{2016}\\))0<\/sup> = ………………..
\nA) 0
\nB) – 1
\nC) 6
\nD) 1
\nAnswer:
\nD) 1<\/p>\n

Question 37.
\nThe general form of 2.03 \u00d7 105<\/sup> is ………………..
\nA) 0.00234
\nB) 0.00423
\nC) 0.00230
\nD) 0.0000203
\nAnswer:
\nD) 0.0000203<\/p>\n

Question 38.
\nThe standard form of 23,40,00,000 is ……………………
\nA) 2.34 \u00d7 108<\/sup>
\nB) 3.24 \u00d7 106<\/sup>
\nC) 3.34 \u00d7 106<\/sup>
\nD) 8.15 \u00d7 109<\/sup>
\nAnswer:
\nA) 2.34 \u00d7 108<\/sup><\/p>\n

\"AP<\/p>\n

Question 39.
\n(7-1<\/sup> – 18-1<\/sup>)0<\/sup> = …………………
\nA) – 1
\nB) 0
\nC) 1
\nD) 7
\nAnswer:
\nC) 1<\/p>\n

Question 40.
\nIf we divide 85<\/sup> by ………………. we get 8
\nA) 810<\/sup>
\nB) 86<\/sup>
\nC) 85<\/sup>
\nD) 84<\/sup>
\nAnswer:
\nD) 84<\/sup><\/p>\n

Question 41.
\n10-3<\/sup> = ………………..
\nA) \\(\\frac{1}{200}\\)
\nB) \\(\\frac{1}{100}\\)
\nC) \\(\\frac{1}{10}\\)
\nD) \\(\\frac{1}{1000}\\)
\nAnswer:
\nD) \\(\\frac{1}{1000}\\)<\/p>\n

Question 42.
\n(\\(\\frac {1}{2}\\))-2<\/sup> \u00f7 (\\(\\frac {1}{2}\\))-2<\/sup>
\nA) (\\(\\frac {1}{2}\\))3<\/sup>
\nB) -1
\nC) 1
\nD) – 2
\nAnswer:
\nC) 1<\/p>\n

Question 43.
\n(25<\/sup> \u00f7 26<\/sup>) \u00d7 2 = ………………….
\nA) 1
\nB) – 2
\nC) 3
\nD) – 1
\nAnswer:
\nA) 1<\/p>\n

Question 44.
\n53x – 1<\/sup> \u00f7 25 = 125 then x = ………………
\nA) – 2
\nB) 2
\nC) 4
\nD) 3
\nAnswer:
\nB) 2<\/p>\n

Question 45.
\n\\(\\frac{6^{-2}}{6^{n}}\\) = 6-3<\/sup> then n = ………………
\nA) 2
\nB) 1
\nC) -1
\nD) 3
\nAnswer:
\nB) 1<\/p>\n

Question 46.
\n\\(\\frac{\\mathbf{5}^{\\mathrm{m}} \\times \\mathbf{5}^{3} \\times \\mathbf{5}^{-\\mathbf{2}}}{\\mathbf{5}^{-\\mathbf{5}}}\\) = 512<\/sup> then m = …………………
\nA) 1
\nB) 4
\nC) 3
\nD) None
\nAnswer:
\nD) None<\/p>\n

\"AP<\/p>\n

Question 47.
\n210<\/sup> = …………………
\nA) 1042
\nB) 512
\nC) 1024
\nD) 1204
\nAnswer:
\nC) 1024<\/p>\n

Question 48.
\nWhich of the following is correct ?
\nA) \\(\\frac {1}{4}\\)(2n<\/sup>) = 2n – 2<\/sup>
\nB) 4n – 1<\/sup> = 4n<\/sup>
\nC) 4m<\/sup> \u00d7 4-m<\/sup> = 4-2m<\/sup>
\nD) 25 (5n<\/sup>) = 5n – 1<\/sup>
\nAnswer:
\nA) \\(\\frac {1}{4}\\)(2n<\/sup>) = 2n – 2<\/sup><\/p>\n

Question 49.
\n3x -1<\/sup> = ………………
\nA) \\(\\frac{3}{x}\\)
\nB) \\(\\frac{1}{3 x}\\)
\nC) \\(\\frac{3^{-1}}{\\mathrm{x}^{2}}\\)
\nD) \\(\\frac{x}{3}\\)
\nAnswer:
\nA) \\(\\frac{3}{x}\\)<\/p>\n

Question 50.
\nThe standard form of 24.36 \u00d7 10-3<\/sup> is ……………..
\nA) 0.4236
\nB) 0.243
\nC) 24.36
\nD) 0.02436
\nAnswer:
\nD) 0.02436<\/p>\n

Question 51.
\n(4\u00b0 + 5-1<\/sup>) \u00d7 52<\/sup> \u00d7 \\(\\frac{1}{3}\\) = ………………
\nA) -10
\nB) 10
\nC) \\(\\frac{1}{10}\\)
\nD) – 3
\nAnswer:
\nB) 10<\/p>\n

Question 52.
\n1 + 2-1<\/sup> + 3-1<\/sup> + 40<\/sup> = …………………..
\nA) \\(\\frac{1}{6}\\)
\nB) \\(\\frac{6}{7}\\)
\nC) \\(\\frac{7}{6}\\)
\nD) \\(\\frac{17}{6}\\)
\nAnswer:
\nD) \\(\\frac{17}{6}\\)<\/p>\n

Question 53.
\n30<\/sup> – 3-1<\/sup> = ………………..
\nA) \\(\\frac{2}{3}\\)
\nB) \\(\\frac{3}{2}\\)
\nC) \\(\\frac{1}{2}\\)
\nD) 1
\nAnswer:
\nA) \\(\\frac{2}{3}\\)<\/p>\n

\"AP<\/p>\n

Question 54.
\nm = 3, n = 1 then mn<\/sup> – nm<\/sup> = ………………..
\nA) 4
\nB) 1
\nC) – 2
\nD) 2
\nAnswer:
\nD) 2<\/p>\n

Question 55.
\n72n + 1<\/sup> \u00f7 49 – 73<\/sup> then n = ………………
\nA) – 2
\nB) 2
\nC) 3
\nD) -3
\nAnswer:
\nB) 2<\/p>\n

Question 56.
\n(5 \u00d7 102<\/sup>) + (4 \u00d7 10) + (3 \u00d7 100<\/sup>) + (6 \u00d7 10-1<\/sup>) + (7 \u00d7 10-2<\/sup>)
\nA) 345.6
\nB) 453.67
\nC) 841.7
\nD) 543.67
\nAnswer:
\nD) 543.67<\/p>\n

Question 57.
\n34<\/sup> x 43<\/sup> = …………………….
\nA) 1584
\nB) 5184
\nC) 8122
\nD) 1811
\nAnswer:
\nB) 5184<\/p>\n

Question 58.
\n\\(\\sqrt[5]{\\mathbf{3 2}}\\) = …………………
\nA) 23<\/sup>
\nB) 18
\nC) 12
\nD) 2
\nAnswer:
\nD) 2<\/p>\n

Question 59.
\n\\(\\frac{2401}{625}\\) = ………………..
\nA) (\\(\\frac{5}{7}\\))4<\/sup>
\nB) (\\(\\frac{7}{5}\\))4<\/sup>
\nC) (\\(\\frac{5}{3}\\))4<\/sup>
\nD) (\\(\\frac{7}{4}\\))4<\/sup>
\nAnswer:
\nB) (\\(\\frac{7}{5}\\))4<\/sup><\/p>\n

Question 60.
\n\\(\\left(\\left(\\frac{1}{4}\\right)^{2}\\right)^{3}\\) = ………………….
\nA) \\(\\frac{1}{3092}\\)
\nB) \\(\\frac{1}{6096}\\)
\nC) \\(\\frac{1}{3096}\\)
\nD) \\(\\frac{1}{4096}\\)
\nAnswer:
\nD) \\(\\frac{1}{4096}\\)<\/p>\n

\"AP<\/p>\n

Question 61.
\n(\\(\\frac{4}{5}\\))3<\/sup> \u00d7 (\\(\\frac{4}{5}\\))-6<\/sup> = (\\(\\frac{4}{5}\\))2x – 1<\/sup> x = ………………
\nA) – 1
\nB) 2
\nC) 1
\nD) 4
\nAnswer:
\nA) – 1<\/p>\n

Question 62.
\nThe standard form of \\(\\frac{622}{100,00,00,000}\\) is …………………
\nA) 622 \u00d7 107<\/sup>
\nB) 6.22 \u00d7 10-7<\/sup>
\nC) 266 \u00d7 10-7<\/sup>
\nD) 6.22 \u00d7 10-6<\/sup>
\nAnswer:
\nB) 6.22 \u00d7 10-7<\/sup><\/p>\n

Question 63.
\n3\u00b0 + 4\u00b0 + 5\u00b0 – 3\u00b0 = ………………..
\nA) 4
\nB) 3
\nC) 1
\nD) 2
\nAnswer:
\nD) 2<\/p>\n

Question 64.
\n-4-1<\/sup> + 8-1<\/sup> \u00f7 (\\(\\frac {2}{3}\\))-1<\/sup> = …………………
\nA) – 1
\nB) \\(\\frac {-1}{6}\\)
\nC) 6
\nD) \\(\\frac {1}{2}\\)
\nAnswer:
\nB) \\(\\frac {-1}{6}\\)<\/p>\n

Question 65.
\n(\\(\\frac {-1}{5}\\))-1<\/sup> = …………………
\nA) 3
\nB) – 1
\nC) 5
\nD) – 5
\nAnswer:
\nD) – 5<\/p>\n

Question 66.
\n(\\(\\frac {2}{3}\\))-3<\/sup> = ……………….
\nA) \\(\\frac{27}{8}\\)
\nB) \\(\\frac{7}{8}\\)
\nC) \\(\\frac{1}{7}\\)
\nD) \\(\\frac{1}{6}\\)
\nAnswer:
\nA) \\(\\frac{27}{8}\\)<\/p>\n

Question 67.
\n64-0.5<\/sup> = ………………
\nA) -4
\nB) – 8
\nC) 8
\nD) \\(\\frac {1}{8}\\)
\nAnswer:
\nD) \\(\\frac {1}{8}\\)<\/p>\n

\"AP<\/p>\n

Question 68.
\n1 + (9 – 10)-5 <\/sup>= ………………………
\nA) 0
\nB) -1
\nC) 3
\nD) 2
\nAnswer:
\nA) 0<\/p>\n

Question 69.
\nx = 3 400<\/sup>, y = 4 300<\/sup> then ………………
\nA) x < y
\nB) x – y
\nC) x2<\/sup> = y
\nD) x > y
\nAnswer:
\nD) x > y<\/p>\n

Question 70.
\n642\/3<\/sup> = ……………….
\nA) 12
\nB) 16
\nC) 10
\nD) -4
\nAnswer:
\nB) 16<\/p>\n

Question 71.
\n\\(\\sqrt[4]{81}\\) = …………………
\nA) 3
\nB) 4
\nC) 5
\nD) \\(\\frac{1}{3}\\)
\nAnswer:
\nA) 3<\/p>\n

Question 72.
\n[(32<\/sup>)3<\/sup>]4<\/sup> = ……………….
\nA) 312<\/sup>
\nB) 318<\/sup>
\nC) 320<\/sup>
\nD) 324<\/sup>
\nAnswer:
\nD) 324<\/sup><\/p>\n

Question 73.
\n24<\/sup> \u00d7 (32)-1<\/sup> = ……………….
\nA) \\(\\frac {-1}{2}\\)
\nB) \\(\\frac {1}{2}\\)
\nC) – 2
\nD) \\(\\frac {1}{7}\\)
\nAnswer:
\nB) \\(\\frac {1}{2}\\)<\/p>\n

Question 74.
\nBase in 2x-3<\/sup> is ……………………
\nA) 2
\nB) x
\nC) -3
\nD) 2x
\nAnswer:
\nB) x<\/p>\n

\"AP<\/p>\n

Question 75.
\n(125)-2\/3<\/sup> = ……………..
\nA) 25
\nB) \\(\\frac{1}{-10}\\)
\nC) \\(\\frac{1}{25}\\)
\nD) \\(\\frac{1}{2}\\)
\nAnswer:
\nC) \\(\\frac{1}{25}\\)<\/p>\n

Question 76.
\n\\(\\left(\\frac{25}{49}\\right)^{\\frac{1}{2}}\\) = …………………..
\nA) \\(\\frac{5}{7}\\)
\nB) \\(\\frac{1}{7}\\)
\nC) \\(\\frac{1}{3}\\)
\nD) -3
\nAnswer:
\nA) \\(\\frac{5}{7}\\)<\/p>\n

Question 77.
\n\\(\\frac{2^{a+3} \\times 3^{2 a+b} \\times 6^{b+1}}{3^{a+b} \\times 6^{a+b}}\\) = …………………….
\nA) 28
\nB) 38
\nC) 48
\nD) \\(\\frac{41}{8 b}\\)
\nAnswer:
\nC) 48<\/p>\n

Question 78.
\n(a-1<\/sup> + b-1<\/sup>) ab = …………………
\nA) ab
\nB) a-b
\nC) \\(\\frac{1}{a+b}\\)
\nD) a + b
\nAnswer:
\nD) a + b<\/p>\n

Question 79.
\n(a\u00b0)\u00b0 = ………………..
\nA) a
\nB) 1
\nC) – 1
\nD) None
\nAnswer:
\nB) 1<\/p>\n

Question 80.
\n\"AP = …………………
\nA) 0
\nB) 1
\nC) – 1
\nD) – 3
\nAnswer:
\nB) 1<\/p>\n

Question 81.
\n\"AP = ………………..
\nA) y
\nB) \\(\\frac{1}{y}\\)
\nC) -y
\nD) 1
\nAnswer:
\nA) y<\/p>\n

\"AP<\/p>\n

Question 82.
\n9x<\/sup> + 9x – 1<\/sup> = 90 then x = ………………..
\nA) 2
\nB) -2
\nC) 3
\nD) 4
\nAnswer:
\nA) 2<\/p>\n

Question 83.
\n10-3x<\/sup> = 8 then 10x<\/sup> = …………………..
\nA) \\(\\frac {1}{4}\\)
\nB) – 2
\nC) 2
\nD) \\(\\frac {1}{2}\\)
\nAnswer:
\nD) \\(\\frac {1}{2}\\)<\/p>\n

Question 84.
\nx = \u221a2 then (xx<\/sup>)x<\/sup> = ………………….
\nA) \\(\\frac{1}{\\sqrt{2}}\\)
\nB) \\(\\frac{1}{4 \\sqrt{2}}\\)
\nC) \\(\\frac{1}{3 \\sqrt{2}}\\)
\nD) \\(\\frac{1}{5 \\sqrt{2}}\\)
\nAnswer:
\nB) \\(\\frac{1}{4 \\sqrt{2}}\\)<\/p>\n

Question 85.
\n\\(\\frac{2^{n+2}-2^{n+1}}{4 \\times 2^{n-1}}\\) = ………………..
\nA) 3
\nB) – 1
\nC) 7
\nD) 1
\nAnswer:
\nD) 1<\/p>\n

Question 86.
\n57 – x<\/sup> = 5\u00b0 then x = ……………….
\nA) 13
\nB) 7
\nC) 3
\nD) 4
\nAnswer:
\nB) 7<\/p>\n

Question 87.
\nIf 9x<\/sup> – 9x – 1<\/sup> = 72 then the value of 3x = ………………
\nA) 6
\nB) – 3
\nC) – 6
\nD) 4
\nAnswer:
\nA) 6<\/p>\n

Question 88.
\n\\(\\frac {1}{81}\\) th value of 729 is …………………
\nA) 92<\/sup>
\nB) – 9
\nC) 10
\nD) 9
\nAnswer:
\nD) 9<\/p>\n

\"AP<\/p>\n

Question 89.
\nIf we multiply 3-4<\/sup> with ……………. product as 729.
\nA) 310<\/sup>
\nB) 37<\/sup>
\nC) 39<\/sup>
\nD) 36<\/sup>
\nAnswer:
\nA) 310<\/sup><\/p>\n

Question 90.
\n2n<\/sup> = 2 then 2n+3<\/sup> = ………………..
\nA) 23
\nB) 19
\nC) 10
\nD) 16
\nAnswer:
\nD) 16<\/p>\n

Question 91.
\n161.25<\/sup> = ……………….
\nA) 30
\nB) 19
\nC) 32
\nD) 16
\nAnswer:
\nC) 32<\/p>\n

Question 92.
\nax(y-z) <\/sup>\u00d7 ay(z-x)<\/sup> \u00d7 az(x-y)<\/sup> = …………………
\nA) 3
\nB) 1
\nC) – 1
\nD) 0
\nAnswer:
\nB) 1<\/p>\n

Question 93.
\na = 1, b = 2 then ab<\/sup> + ba<\/sup> =
\nA) 4
\nB) 3
\nC) 2
\nD) 13
\nAnswer:
\nB) 3<\/p>\n

Question 94.
\n2 x+3<\/sup> = 4 x+1<\/sup> then x = ………………
\nA) 4
\nB) 3
\nC) 2
\nD) 1
\nAnswer:
\nD) 1<\/p>\n

Question 95.
\n(\\(\\frac{-2}{3}\\))-4<\/sup> \u00d7 (\\(\\frac{-3}{5}\\))2<\/sup> =
\nA) \\(\\frac{250}{9}\\)
\nB) \\(\\frac{9}{250}\\)
\nC) \\(\\frac{350}{9}\\)
\nD) \\(\\frac{1}{90}\\)
\nAnswer:
\nA) \\(\\frac{250}{9}\\)<\/p>\n

Question 96.
\n(\\(\\frac {1}{2}\\))-2<\/sup> + (\\(\\frac {1}{3}\\))-2<\/sup> + (\\(\\frac {1}{4}\\))-2<\/sup> = ………………..
\nA) 16
\nB) 19
\nC) 29
\nD) 32
\nAnswer:
\nC) 29<\/p>\n

\"AP<\/p>\n

Question 97.
\n(6-1<\/sup> – 8-1<\/sup>)-1<\/sup> + (2-1<\/sup> – 3-1<\/sup>)-1<\/sup> = …………………
\nA) 60
\nB) 15
\nC) 20
\nD) 6
\nAnswer:
\nB) 15<\/p>\n

Question 98.
\n\\(\\frac{-1}{6} \\times \\frac{-1}{6} \\times \\frac{-1}{6}\\) = ………………
\nA) \\(\\frac{-1}{206}\\)
\nB) \\(\\frac{-1}{16}\\)
\nC) \\(\\frac{1}{21}\\)
\nD) \\(\\frac{-1}{216}\\)
\nAnswer:
\nD) \\(\\frac{-1}{216}\\)<\/p>\n

Question 99.
\n\\(\\sqrt[4]{81}-8 \\times \\sqrt[3]{216}+15 \\sqrt[5]{32}+\\sqrt{225}\\) = ……………………
\nA) 3
\nB) 2
\nC) 0
\nD) 1
\nAnswer:
\nC) 0<\/p>\n

Question 100.
\n(1254)1\/2<\/sup> = ……………….
\nA) 114
\nB) 132
\nC) 112
\nD) 122
\nAnswer:
\nC) 112<\/p>\n","protected":false},"excerpt":{"rendered":"

Practice the AP 8th Class Maths Bits with Answers Chapter 4 Exponents and Powers on a regular basis so that you can attempt exams with utmost confidence. AP State Syllabus 8th Class Maths Bits 4th Lesson Exponents and Powers with Answers Choose the correct answer. Question 1. am \u00d7 bm = A) ()m B) (ab)m …<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[12],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/17408"}],"collection":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/comments?post=17408"}],"version-history":[{"count":0,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/17408\/revisions"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=17408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=17408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=17408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}