UNIVERSITY OF THE PHILIPPINES (LOS BAÑOS) MATH 17 - COLLEGE ALGEBRA AND TRIGONOMETRY Supplementary Exercise

1. EXERCISES 4.7
A. Find the exact value of the following.
1. 4.
2. 5.
3. 6.
B. Find and and determine the quadrants where are.
1. and where are in QI
2. and where is in QII and is in QIV.
3. and where are in QIV
4. and where are in QIII
C. Verify the following using the sum and difference identities.
1. 5.
2. 6.
3. 7.
4. 8.
D. Verify the following by getting the circular function values of both sides of the equation, then applying the
sum and difference identities.
1. 4.
2. 5.
3. 6.
4.
E. Prove that .
F. Find the solution set of the following equations.
1. 3.
2.