4950 The function cot1 x is defined to be the inverse ofthe restricted cotangent
Chapter 0, Problem 50(choose chapter or problem)
The function \(\cot ^{-1} x\) is defined to be the inverse of the restricted cotangent function \(\cot x, 0<x<\pi\) and the function \(\csc ^{-1} x\) is defined to be the inverse of the restricted cosecant function \(\csc x,-\pi / 2<x<\pi / 2, x \neq 0\).Use these definitions in these and in all subsequent exercises that involve these functions.
Show that
(a) \(\cot ^{-1} x=\left\{\tan ^{-1}(1 / x)\right\}\), if \(x>0 \pi+\tan ^{-1}(1 / x)\), if \(x<0\)
(b) \(\sec ^{-1} x=\cos ^{-1} \frac{1}{x}\), if \(|x| \geq 1\)
(c) \(\csc ^{-1} x=\sin ^{-1} \frac{1}{x}\), if \(|x| \geq 1\)
Equation Transcription:
Text Transcription:
cot^-1 x
cot x,0<x<pi
csc^-1 x
csc x,-pi/2<x<pi/2, x not =0
cot^-1x={tan^-1(1/x)}
x>0 pi+tan-1(1/x)
x<0
sec^-1 x=cos^-1 1/x
|x|1
csc^-1x=sin^-1 1/x
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