Asked by Anonymous
Evaluate the integral. (Remember to use ln(|u|) where appropriate.)
cot^3(3x) dx
cot^3(3x) dx
Answers
Answered by
Steve
cot^3 = cot cot^2
= cot (csc^2 - 1)
= cot csc^2 - cot
= cot csc^2 - cos/sin
Now your way should be clear, since
d/dx(cot) = -csc^2
d/dx(log sin) = cos/sin
= cot (csc^2 - 1)
= cot csc^2 - cot
= cot csc^2 - cos/sin
Now your way should be clear, since
d/dx(cot) = -csc^2
d/dx(log sin) = cos/sin
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