Class 1-31-11

Classwork and Homework: Half sheet of problems reviewing Co-Function, Odd-Even, Reciprocal, Quotient, and Pythagorean Trig Identities.

Problems
1. If tan(x)= 1.6, cos(x) = ?
2. If cos(x) = -0.65, cos(-x) = ?
3. If cos(x) = 1/2, sin(x)< 0, find sin(x) and tan(x).
4. If sec(x) = -2, csc(x) > 0, find csc(x) and cot(x).
5. _______(72 degrees) = cot (18 degrees)
6. sin(x) = cos(2x - 10degrees), find x.
7. If cos(x - pi/2) = 0.64, find sin (-x).

Class 1-27-11

N/A.

Class 1-26-11

N/A early dismissal for inclement weather.

Class 1-25-11

Classwork: #5, 7 on page 451.

Homework: #6, 8 on page 451.

Class 1-24-11

Classwork: Problems #2, 3 on page 451.

Homework: Problems #1-5 in the Quick Review (yellow box) on page 451.