1. Find the exact trig values for an angle of
This angle has a terminal side in the 2nd quadrant (because 5/4 = 1.2) y x

2. Finding Trig Values from an x-y coordinate
Find the 6 trig functions for an angle which has terminal side passing through (-5, -3) y x

3. From the chart we get that 60 degrees has a
Find the for all angles that are between 0 and 360 degrees (also in include the radian measurements y
From the chart we get that 60 degrees has a x
sin is negative in the 3rd and 4th quadrants

4. Law of Cosines – Solve the Triangle15 23 C 34 B

5. Law of Cosines – Solve the Triangle15 23 C 34 B

6. Law of Cosines – Solve the Triangle15 23 C 34
B=21º

7. Law of Cosines – Solve the Triangle15 23
C=33º 34
B=21º

8. Law of Cosines – Solving a Triangle
Find missing side of the triangle, and then use the law of sines to find the missing angles 14
75º 43 A
41.63 B

9. Law of Cosines – Solving a Triangle
Find missing side of the triangle, and then use the law of sines to find the missing angles 14
75º 43 A
We can now use law of sines to find one of the angles that is missing
41.63 B

10. Law of Cosines – Solving a Triangle14
75º 43 A
41.63 B

11. Law of Cosines – Solving a Triangle
Now use this angle and the 75 that you were given in the beginning to find the 3rd angle 14
75º 43 A
41.63 B

12. 724 #81 (find all missing sides and angles – DO NOT FIND AREA)
727 #1-3 (sketch the angles and reference angles – then find the answers)
727 #4-6 (find all angles between 0 and 360 and their radian counterparts)
724 #75, 79 (find all missing angles and show ALL work along with a drawing)
724 #81 (find all missing sides and angles – DO NOT FIND AREA)
697 #9, 11, 13, 15 (make sure they have the proper signs and show ALL work)
697 #22, 23, 25, 27 (sketch and find the reference angle)
697 #36, 38, 40 (you need a sketch and to explain how you know without using
the calculator)