I'm trying to do my mathematical analysis homework but I have faced one struggle.
$$\iint_{\omega} y^2\,dx\,dy$$ where $\omega$ is bounded by the axis of abscissas and the first arch of the cycloid $$ \left\{ \begin{array}{c} x=a(t-\sin(t)) \\ y=a(1-\cos(t)) \end{array} \right. $$ where $0â¤tâ¤2\pi$ and $a>0$.
What I found out is the graph itself:
And, let's say, I choose to integrate y from 0 to 2a and how can I express the function itself?
I need hints, how to create such an integral. Thank you!