# Double integral to find area

1. Dec 4, 2015

### catch22

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
here is my approach,

I take the whole area, which is π16

now to find the unshaded region's area, I use rectangular coordinates.

my bounds are from -2 to 2 for x and the the top and bottom of the larger circle : sqrt (16-x^2) and -sqrt (16-x^2)

but now I don't know if there should be an integrand or assume it is 1 if none is given?

2. Dec 4, 2015

### RUber

When you integrate for area, the integrand is 1.

3. Dec 6, 2015