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Question

Question: If \(x = \log\left( \frac{1}{y} + \sqrt{\frac{1}{y^{2}} + 1} \right)\), then y is equal to....

If x=log(1y+1y2+1)x = \log\left( \frac{1}{y} + \sqrt{\frac{1}{y^{2}} + 1} \right), then y is equal to.

A

tanhx\tanh x

B

coshx\cosh x

C

sinhx\sinh x

D

cosechx\cos echx

Answer

cosechx\cos echx