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Find sin^(-1) ( sin theta ) , cos^(-1...

Find ` sin^(-1) ( sin theta ) , cos^(-1) ( cos theta) , tan^(-1) ( tan theta) , cot^(-1) ( cot theta ) "for " theta in ( (5 pi)/2, 3 pi) ` .

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The correct Answer is:
`3pi-theta, theta -2pi,theta-pi,theta-2pi`
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