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

1. Name: __________________________________ Score:
Section: ______________ Date: ____________
Exercise 12 (Take home)
Do as indicated. It is an all or nothing exercise and strictly no erasures.
Due on Wednesday (November 23)
1. Find the fundamental solution set of the following equations.
a.  2
2sin 2 1 0x  
b.    cos 2 3cos 2 0x x
c. 5cos sin 2cos 0x x x 
d.    7sin 2 cos 2sin 2 0x x x 
2. Find the solution set of the following equations. Check your solutions.
a.  Arctan 2 1 Arcsin1 Arccos0x   
b.    Arccot 1 Arccot 1
2
x x

   
3. Solve the triangle whose sides are, a=3.5, b=4.7 and c=2.8.
4. The angle of depression of a boat from the top of a lighthouse is 32 . If
the lighthouse stands 60 ft tall, how far is the boat from the base of the
lighthouse? Write your solution at the back.