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Differntiate the following functions by proper substitution.cos^(-1)(2t^2-1) |
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Answer» SOLUTION :`y=COS^(-1)2t^2-1)`[PUT`t=costheta` `=cos^(-1)(2cos^2theta-1)` `=cos^(-1)cos2theta=2theta=2 cos^(-1)` `thereforedy/dx=-2/sqrt(1-t^2)` |
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