I do not know if that work for you
it is better to post the whole question
I have just been doing an integration question where I was asked to use substitution . so now i have done the integration
and got and I need to show the parametric solution is
y=A(1-cos(u)) and x=A(u-sin(u))+B
Ok so if , then y=A(1-cos(u)) but how to get x?