Asked by mary
please help me find anti derivative of -sinx * cos^2x
am i using integration by parts?
am i using integration by parts?
Answers
Answered by
drwls
No. Use substitution.
Let u = cos x. Then du = -sin x dx
The integral becomes that of
u^2 du, which is u^3/3
After substituting back, that becomes (cos^3 x)/3
Let u = cos x. Then du = -sin x dx
The integral becomes that of
u^2 du, which is u^3/3
After substituting back, that becomes (cos^3 x)/3
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