Prove:(a) cosh1 x = ln(x + x2 1 ), x 1(b) tanh1 x = 12ln 1 + x1 x, 1 <x< 1
Chapter 6, Problem 60(choose chapter or problem)
Prove:
(a) \(\cosh^{-1}x=\ln\left(x+\sqrt{x^2-1}\right),\quad\ \ \ \ x\ge1\)
(b) \(\tanh^{-1}x=\frac{1}{2}\ln\left(\frac{1+x}{1-x}\right),\quad\ \ \ \ -1<x<1\)
Equation Transcription:
Text Transcription:
cosh^-1 x=ln(x+sqrt x^2-1), x geq 1
tanh^-1 x=1/2 ln(frac 1+x / 1-x), -1<x<1
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