SOLUTION: Use the reverse chain rule to find integral of cosec^3xcotx in terms of dx, bounds pi/6 to pi/4

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Question 1121444: Use the reverse chain rule to find integral of cosec^3xcotx in terms of dx, bounds pi/6 to pi/4
Answer by solver91311(24713) About Me  (Show Source):
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Let , then . Therefore . Substituting:



Reversing the substitution:



The rest is just arithmetic. Hint: is the reciprocal of and you should know the values for and by now.


John

My calculator said it, I believe it, that settles it