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Evaluate: int(sinx)/(sqrt(4cos^2x-1))\ d...

Evaluate: `int(sinx)/(sqrt(4cos^2x-1))\ dx`

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I=`int(sinx)/(sqrt(4cos^2x-1))\ dx`
Let`2cosx=t`
`dt/dx=-2sinx`
`I=−1/2​∫dt/sqrt(t^2−1) ​`
`I=−1/2​(lnt+sqrt(t^2−1) ​])+c`
`I=−1/2​(ln[2cosx+sqrt((2cosx)^2−1) ...
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