pi -- 2 / | | cot(x) dx | / 0
Integral(cot(x), (x, 0, pi/2))
Rewrite the integrand:
Let .
Then let and substitute :
The integral of is .
Now substitute back in:
Add the constant of integration:
The answer is:
/ | | cot(x) dx = C + log(sin(x)) | /
Use the examples entering the upper and lower limits of integration.