Techniques of Integration - Other Techniques of Integrating Trigonometric Functions

Techniques of Integration - Other Techniques of Integrating Trigonometric Functions

\(\displaystyle\displaystyle \displaystyle\int_{0}^{\frac{\pi }{4}}{{{\cos }^{4}}y\sin y}\mathrm{ d}x\)

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Answer:\(\frac{1}{5}\left( 1-\frac{\sqrt{2}}{8} \right)\)

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