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(6^(-1)-8^(-1))^(-1) = (a)1/(24) (b) 2...

`(6^(-1)-8^(-1))^(-1)` =
(a)`1/(24)`
(b) `24`
(c)`-24`
(d) `-1/(24)`

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RD SHARMA ENGLISH-EXPONENT-All Questions
  1. Find the numbers from each of the following expanded forms: 7xx10^4+6x...

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  2. Find the numbers from each of the following expanded forms: 1)9xx10^5...

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  3. (6^(-1)-8^(-1))^(-1) = (a)1/(24) (b) 24 (c)-24 (d) -1/(24)

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  4. Find: 2^(3^2) = (a)64                                         (b)...

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  5. (3^(-1)xx5^(-1))^(-1) = (a)1/(15)\ \ \ (b) -1/(15) (c) 15 (d) -15

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  6. (-3/5)^(-1) = (a)3/5 (b) 5/3 (c)-5/3 (d) -3/5

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  7. (-1)^(301)+(-1)^(302)+(-1)^(303)+ ....+(-1)^(400) (b) 101 100 (d) 0

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  8. If a=25 , then a^((25)^0)+a^(0^(25))= (a)25 (b) 26 (c)24 (d) ...

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  9. {(1/3)^(-3)-(1/2)^(-3)}-:(1/4)^(-3) = (a)(19)/(64) (b) (64)/(19) (c...

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  10. (25^2-15^2)^(3/2) = (a) 4000\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \...

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  11. If (5/3)^(-5)xx(5/3)^(11)=(5/3)^(8x) , than x=? (a)-1/2 (b) -3/4 (c...

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  12. [{(-1/3)^2}^(-2)]^(-1) = (a) 1/(81) (b) 1/9 (c) -1/(81) (d) -1/9

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  13. ((144)^(1/2)+(256)^(1/2))/(3^2-2)= (A) 8 (B) 4 (C) -4 (D) -8

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  14. ( 1+3+5+7+9+11 )^ (3/2)   = (a)36                            ...

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  15. If a b c = 0, then ({(x^a)^b}^c)/({(x^b)^c}^a) = (a)3 (b) 0 (c)-1 ...

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  16. (2^3)^4 = (a)2^4*3 (b) 2^3*4 (c)(2^4)^3 (d) none of these

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  17. { ( 33 )^ 2 − ( 31 )^ 2 } ^(5/7) = (a)64                  ...

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  18. If a b c=0 , then find the value of {(x^a)^b}^c (a)1 (b) a (c)b ...

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  19. If a=3^(-3)-3^3\ a n d\ b=3^3-3^(-3),\ t h e n a/b-b/a (a) 0 (b) 1...

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  20. What should be multiplied to 6^(-2) so that the product may be equal t...

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