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int (x^(2)+cos^(2)x)/(x^(2)+1) "cosec"^(...

` int (x^(2)+cos^(2)x)/(x^(2)+1) "cosec"^(2) xdx ` is equal to -

A

`cot x - cot^(-1) x + c`

B

` c - cot x + cot^(-1)x`

C

` - tan^(-1) x - ("cosec x")/(sec x ) + c `

D

` -e ^(log tan^(-1) x - cot x + c `

Text Solution

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The correct Answer is:
B, C, D
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