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The inverse of the function y = 5^1nx is A. x = y^1/(1n5), y > 0

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The inverse of the function y = 51nx is 

A. x = y1/(1n5), y > 0

B. x = y1n5, y > 0

C. x = y1/(1n5), y < 0

D. x = 5 1ny, y > 0

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1 Answer

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Best answer

Correct option A.

Explanation:

y = 5lnx

Taking ln on both sides

ln y = ln x ln 5

ln x = ln y/ln 5 = ln x- ln 5 = ln y1/ln 5

Or x = y1/ln 5 , y > 0 

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