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(64)^(-1/2)-(-32)^(-4/5)=? 1/8 b. 3/8 c...

`(64)^(-1/2)-(-32)^(-4/5)=?` `1/8` b. `3/8` c. `1/(16)` d. `3/(16)` e. none of these

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RS AGGARWAL-SURDS AND INDICES-All Questions
  1. 49xx49xx49xx49=7^? 4 b. 7 c. 8 d. 16

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  2. The value of (8^(-25)-8^(-26)) is a. 7xx8^(-25) b. 7xx8^(-26) c. 8xx8^...

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  3. (64)^(-1/2)-(-32)^(-4/5)=? 1/8 b. 3/8 c. 1/(16) d. 3/(16) e. none of...

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  4. (a/b)^(x-1)=(b/a)^(x-3), then the value of x is 1/2 b. 1 c. 7/2 d. 2

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  5. If 2^(2n-1)=1/(8^(n-3)), then the value of n is a. -2 b. 2 c. 0 d. 3

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  6. If 5^a=3125, then the value of 5^(a-3) is a. 25 b. 125 c. 625 d. 1625

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  7. If 5sqrt(5)xx5^3-:5^(-3//2)=5^(a+2), then the value of a is a. 4 b. 5 ...

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  8. If sqrt(2^n)=64 , then the value of n is 2 b. 4 c. 6 d. 12

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  9. If (sqrt(3))^5xx9^2=3^nxx3sqrt(3), then the value of n is a. 2 b. 3 c....

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  10. If (9^n xx 3^5 xx 27^3)/(3 xx (81)^4) = 27, then n equals

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  11. If (9/4)^x xx(8/(27))^(x-1)=2/3, then the value of x is a. 1 b. 2 c. 3...

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  12. If 2^x=root(3)32, then x is equal to a. 5 b. 3 c. 3/5 d. 5/3

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  13. If 2^x xx8^(1//5)=2^(1//5) , then x is equal to a. 1/5 b. -1/5 c. 2/5 ...

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  14. If 5^(x+3)=25^(3x-4), then the value of x is a. 5/(11) b. (11)/5 c. (1...

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  15. The expression [root(3)root(6)(a^9) ]^4[root(6)root(3)(a^9)]^4 is sim...

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  16. (256)^(0. 16)xx(256)^(0. 09)=? 4 b. 16 c. 64 d. 256. 25

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  17. (0. 04)^(-1. 5)=? 25 b. 125 c. 250 d. 625

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  18. (17)^(3. 5)xx(17)^?=17^8\ a. 2. 29 b. 2. 75 c. 4. 25 d. 4. 5

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  19. 6^1.2xx36^?xx30^2.4xx25^1.3=30^5 a. 0.1 b. 0.7 c. 1.4 d. 2.6 e. None o...

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  20. 3^3.5xx21^2xx42^2.5-:2^2.5xx7^3.5=21^? a. 6.5 b. 8 c. 10 d. 12.5 e. No...

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