Question
Integrate each of the functions.$$\int_{\pi / 6}^{\pi / 4} 3 \sqrt{\cot x} \csc ^{2} x d x$$
Step 1
We can see that the function $\sqrt{\cot x}$ is present and its derivative, up to a constant, is $\csc^2 x$. This suggests a substitution. We let $u = \cot x$, so $du = -\csc^2 x dx$. Show more…
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