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Suppose 4^a=5,\ 5^b=6,\ 6^c=7,\ 7^d=8, t...

Suppose `4^a=5,\ 5^b=6,\ 6^c=7,\ 7^d=8,` then the value of `a b c d` is a. `2` b. `3/2` c. `1` d. `5/2`

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RS AGGARWAL-SURDS AND INDICES-All Questions
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  2. I f2^x=4^y=8^zand(1/(2x)+1/(4y)+1/(6z))=24/7,t h e nz=?7/48 b)48/7c)44...

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  3. Suppose 4^a=5,\ 5^b=6,\ 6^c=7,\ 7^d=8, then the value of a b c d is a...

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  7. If x^y=y^x, then (x/y)^(x//y) is equal to a. x^(y//x) b. x^(x/y-1) c. ...

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  9. 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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  10. 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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  14. Let r be the result of doubling both the base and the exponent of a^b ...

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  18. If x=5+2sqrt(6), then (x-1)/sqrt(x) is equal to a. sqrt(2) b. sqrt(3) ...

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