could someone show me how to take the anti derivative of
which is also
I know that the answer is: x/2 + [sin(2x)]/4
but I'm having problems seeing the inbetween steps.
The integral (w.r.t x) of a constant is just the constant times x. This is how 1/2 integrated over x becomes x/2. The integral of cosine is sine. Instead of being divided by 2, it is over 4 due to the chain rule (Divide by derivative of 2x).