HI

So the two curves are r = sin x and r = cos x

The intersecting point is pi/4 which makes r = 1/sq rt 2

now I know A = 1/2 integral sign (S) a? b? r^2 dx

The question is what is a and b equal to? I am thinking that b could equal pi/4 and then I can multiply by 2 to get the full area but I don't know how to figure out what a would

hopefully I have given you all the info you need to help me.

Thanks

Calculus beginner