- #1

matt19weezy

- 2

- 0

## Homework Statement

Convert to Cylindrical Coordinates from Cartesian

1st int(-2 to 2), 2nd int(-sqrt(4-x

^{2}) to sqrt (4-x

^{2})), 3rd int((x

^{2}+y

^{2}) to 4) X dz dy dx.

I changed the integrals to Cylindrical 1st int(0 to pi), 2nd int(-2 to 2), 3rd int(r

^{2}to 4) and the X to r cos(theta). r dz dr dtheta. I know this is wrong because I keep getting zero for the answer to area.

## Homework Equations

Cylindrical- x=rcos(theta) y= r sin(theta) z=z

Cyl to Spherical- r= psin(fi) z=pcos(fi) fi=fi

## The Attempt at a Solution

I changed the integrals to Cylindrical 1st int(0 to pi), 2nd int(-2 to 2), 3rd int(r

^{2}to 4) and the X to r cos(theta). r dz dr dtheta. I know this is wrong because I keep getting sin(theta) and ending up with an area of 0.