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July 4th, 2017, 03:07 PM   #1
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integrate the function: (cosx)^2/(1+tanx)
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July 4th, 2017, 05:55 PM   #2
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Wolfram Alpha's result

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July 4th, 2017, 06:32 PM   #3
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For rational functions of trigonometric functions, the Weierstrauss substitution $t=\tan \frac x 2$ often works well.
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