Question

double integral question!

Answer 1

do you know how to use polar coordinates?

Answer 2

i don't think for this one?

Answer 3

R is a dis with radius between 0 to 4 in the first quadrant

Answer 4

disc*

Answer 5

-(x^2 + y^2) = -r^2

Answer 6

do you prfer to use just rectangular coordinates?

Answer 7

I think you are supposed to use polar coordinates

Answer 8

then r is bounded between 0 to 4, theta is bounded between 0 to pie/2

Answer 9

change 4e^ -(x^2 +y^2) to 4e^ -r2

Answer 10

then multiply a jacobian which is r

Answer 11

is that okay?

Answer 12

yup, thanks!

Answer 13

I got a wrong answer, what is it supposed to be?