Use the parametric equations of the ellipse x=5cos(theta), y=7sin(theta) to find the area enclosed by the ellipse for

(-5*radical 3)/2, less than or equal to x, less than or equal to (5*radical 3)/2

Find the length of the curve:

x=e^(2t)*cos(2t)

y=e^(2t)*sin(2t)

0 less than or equal to t less than or equal to Pi/2

Again, I got answers but I'm not sure if they're right. I think they're wrong.