These are review problems. Use any method to solve them.

20.1: 28

20.2: 9

20.3: 5

20.4: 27

20.5: 21, 22

20.6: 17

20.7: 7

20.8: 7

Set up an integral to find the area of an ellipsoid x^2/a^2+y^2/b^2+z^2/c^2=1.

Do NOT evaluate the integral.

21.1:

21.1: 6, 15, 21, 22

Solve:

21.2:

21.2: 2, 4, 5, 7, 9, 10

21.2: 12, 13, 15

Correction to the problem "find the area of an ellipsoid": set up an integral but do not evaluate.

21.2: 17

Review Chapter 20 and 21.1-21.2.