Asked by COFFEE
How would I integrate the following by parts:
Integral of: (x^2)(sin (ax))dx, where a is any constant.
Just like you did x^2 exp(x) below.
Also partial integration is not the easiest way to do this integral. You can also use this method.
Evaluate first:
integral of sin(ax)dx = -1/a cos(ax)
Differentiate both sides twice w.r.t. the parameter a.
Integral of: (x^2)(sin (ax))dx, where a is any constant.
Just like you did x^2 exp(x) below.
Also partial integration is not the easiest way to do this integral. You can also use this method.
Evaluate first:
integral of sin(ax)dx = -1/a cos(ax)
Differentiate both sides twice w.r.t. the parameter a.
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