2 / | | cos(5*x + 1) dx | / 1
Integral(cos(5*x + 1), (x, 1, 2))
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 cosine is sine:
So, the result is:
Now substitute back in:
Now simplify:
Add the constant of integration:
The answer is:
/ | sin(5*x + 1) | cos(5*x + 1) dx = C + ------------ | 5 /
sin(6) sin(11)
- ------ + -------
5 5
=
sin(6) sin(11)
- ------ + -------
5 5
-sin(6)/5 + sin(11)/5
Use the examples entering the upper and lower limits of integration.