I have the following function I need to find an integral for:
I have done my way and got to this integral:
cos(x)^6/6 - cos(x)^8/8 +C
I checked the answer in my book and saw the answer was:
sin(x)^4/4 - sin(x)^6/3 + sin(x)^8/8 +C
I checked the answer in wolfram and got this:
Wolfram Mathematica Online Integrator
I understand each function has a infinite number of integrals, and they can be shown is many different ways.
But still, I cant find a reliable way to check if my answer is correct.
I would like to ask how do you deal with such a problem ?
Thanks a lot,