Can anyone show me the working between the integral in the enclosed file & the answer of A = 4/3
First let's sketch the graph for 0≤t≤2п:
Ok, so one loop is the half of this, i.e. 0≤t≤п:
Now we have:
where x=f(t) and y=g(t). Then we have:
Clear explanations and all mathematical steps are provided.