How to calculate the surface limited by the curve described with the two equations:
$x = 3+cos(t)$
$y=4sin(t)$
The formula we use is the one shown below:
$\int_a^b |y(t).x'(t)| \,dt$
Now I'm wondering what I should use for $a$ and $b$. I also have no idea how to imagine a function like this so I don't know what surface is limited.
Thanks.