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If log(k)N=6, and log(25k)(8N)=3, then k...

If `log_(k)N=6`, and `log_(25k)(8N)=3`, then k is

A

`12.5`

B

`(12.5)^(2)`

C

`(5/2)^(2//3)`

D

`(12.5)^(2//3`

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The correct Answer is:
A
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DISHA PUBLICATION-LOGARITHMS-Practice Exercises (Standard Level)
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  3. The value of 25^((-1//4log(5)25)) is equal to

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  8. If 3log((3x^(2)))27-2log((3x))9=0, then what is the value of x?

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  9. If log(k)N=6, and log(25k)(8N)=3, then k is

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  10. What is the value of log(3)2,log(4)3.log(5)4. . .log(16)15 ?

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  11. Find the value of x, if log(2x-3)-log(11.66-x)=1+log3

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  12. If log(4)5=a and log(5)6=b then what is the value of log(3)2

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  13. What is the value of x if log(3)x+log(9)x+log(27)x+log(81)x=(25)/(4)?

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  15. What is the value of x in the following expression? log(7)log(5)[sq...

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  16. If x=log(a)(bc),y=log(b)(ca)" and "z=log(c)(ab), then which of the fo...

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  18. If log2=0.301,log3=0.477, find the number of digits in (108)^(10)

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  19. loga^(n)//b^(n)+logb^(n)//c^(n)+llogc^(n)//a^(n)

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  20. log(2)(9-2^(x))=10^(log(3-x)), solve for x.

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