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Evaluate: int(sinx)/(sin3x)dxdot...

Evaluate: `int(sinx)/(sin3x)dxdot`

Text Solution

Verified by Experts

I=`int(sinx)/(sin3x)dx`
I=`int(sinx)/(3sinx-4sin^3x)dx`
I=`int(sec^2x)/(3sec^2x-4tan^2x)dxdot`
I=`int(sec^2x)/(3(1+tan^2x)-4tan^2x)dxdot`
I=`int(sec^2x)/(3-tan^2x)dxdot`
let `tanx=t`
so,
`sec^2xdx=dt`
...
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