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Evaluate: sin(tan^(-1)3/4)...

Evaluate: `sin(tan^(-1)3/4)`

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Given, `sin(tan^(−1) (3/4)​)`
Let, `tan^(−1) (3/4)​=theta`
`tan(theta)=3/4`
`cottheta=1/(tantheta)=4/3​`
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