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If 3^x=5^y=45^z , then a. 2/z=1/y-1/x b....

If `3^x=5^y=45^z ,` then a. `2/z=1/y-1/x` b. `2/y=1/x-1/z` c. `2/x=1/z-1/y` d. `x+y+z=0`

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RS AGGARWAL-SURDS AND INDICES-All Questions
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  3. If 2^(2x-1)+4^x=2^(x-1/2)+2^(x+1/2), then x equals a. 1/2 b. 2/3 ...

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  4. If 3^(2x-y)=3^(x+y)=sqrt27 , the value of y is a. 1/2 b. 3/4 c. 1/4 d....

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  5. If 3^x=5^y=45^z , then a. 2/z=1/y-1/x b. 2/y=1/x-1/z c. 2/x=1/z-1/y d....

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  6. Given 2^x=8^(y+1)\ and\ 9^y=3^(x-9) , then the value of x+y is a. 18 b...

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  8. Let r be the result of doubling both the base and the exponent of a^b ...

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  9. Which of the following is the greatest? a. sqrt(2) b. root(3)3 c. root...

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  10. The greatest of sqrt(2),root(6)3,root(3)4,root(4)5 is a. sqrt(2) b. ro...

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  11. The largest number in the sequence 1,\ 2^(1/2),\ 3^(1/3),\ 4^(1/4),\.....

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  13. If x^(1//3)+y^(1//3)=z^(1//3), then {(x+y-z)^3+27 x y z} equals a. 0 b...

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