1 / | | tan(x) dx | / 0
Integral(tan(x), (x, 0, 1))
Rewrite the integrand:
Let .
Then let and substitute :
The integral of a constant times a function is the constant times the integral of the function:
The integral of is .
So, the result is:
Now substitute back in:
Add the constant of integration:
The answer is:
/ | | tan(x) dx = C - log(cos(x)) | /
-log(cos(1))
=
-log(cos(1))
Use the examples entering the upper and lower limits of integration.