differentiation and integration
I am reallly confused with this question, it seems so easy, but i still don't know what it is
the question is:
if dy/dx= cos3x and y=1 when x=0, find y when x=pi/4. I know the answer is supposed to be negative sqrt 0.5 but how to get there is whats confusing me.
Can someone please explain?
Please and thank you
Re: differentiation and integration
Originally Posted by supp
sub in the given values for x and y and solve for the constant of integration ... then evaluate the function at