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If sqrt(3^(n))=2187 then the value of n ...

If `sqrt(3^(n))=2187` then the value of n is

A

13

B

14

C

15

D

16

Text Solution

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The correct Answer is:
B
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KIRAN PUBLICATION-POWER, INDICES AND SURDS-Type -V
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  4. If 2^(x)=3^(y)=6^(-z), then the value of 1/x+1/y+1/z-

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  5. If a=7-4sqrt(3) , the value of a^((1)/(2))+a^(-(1)/(2)) is

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  6. If (x+(1)/(x))=2, then the value of (x^(99)+(1)/(x^(99))-2) is :

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  7. What is the product of the roots of the equation x^(2)-sqrt(3)=0 ?

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  8. The value of (x^((1)/(3))+x^(-(1)/(3)))(x^((2)/(3))-1+x^(-(2)/(3))) is

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  10. If 5sqrt(5) xx 5^(3) /5^(-3/2) = 5^(a +2) then the value of a is

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  11. The value of (3+2sqrt(2))^(-3)+(3-2sqrt(2))^(-3) is

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  12. Solve for x : 3^(x)-3^(x-1)=486

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  13. A tap is dripping at a constant rate into a container. The level (Lcm)...

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  14. Arranging the following in ascending order 3^(34), 2^(51), 7^(17) we g...

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  16. The value of [(0.87)^(2)+(0.13)^(2)+(0.87)xx(0.26)]^(2013) is

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  18. If x=3^((1)/(3))-3^(-(1)/(3)), then (3x^(3)+9x) is equal to

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  19. The exponential form of sqrt(sqrt(2)xxsqrt(3)) is

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