Asked by Neesh

consider the following integral:
⨜cot(7x) dx

Find a substitution to rewrite the integrand as 1/7u du
u=?
du=(?)dx

3 years ago

Answered by oobleck

u = sin(7x)
du = 7cos(7x)
Now you have
∫ 1/7 du/u

3 years ago

Answered by Neesh

Thank you so much!

3 years ago

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