Make sure you know all of the rules for exponents and logarithms!!
You will not need to know the cofunction identities for this exam.
Check out the "Study Guide for Exam 3" problems # 5-7, 14, 22, 25, 29,
30. 34, 37, 39, 40, 46, 49, 50
Check out the "Study Guide for Exam 4" problems # 3, 5, 6, 8, 10-18,
21, 23-25, 28, 31, 34, 37, 38a, 39a