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2. From the chart we get that 45 degrees has a tan = 1
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 45 degrees has a tan = 1 x
tan is negative in the 2nd and 4th quadrants
Place a reference angle of 45 degrees in the 2nd quadrant

3. We also need to place a reference angle of 45 in the 4th quadrant
Find the for all angles that are between 0 and 360 degrees (also in include the radian measurements y
We also need to place a reference angle of 45 in the 4th quadrant x
This would give us an angle of 315º (360 – 45)
This question would have a final answer of 135º, 315º, radians, or radians

4. Law of Cosines – Finding a Missing Side
Find side b in the following triangle
65º
We need angle B (the angle between the sides) 180 – 80 – 65 = 35 23 C
80º
35º 34 B

5. Law of Cosines – Finding a Missing Side
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

6. Law of Cosines – Finding a Missing Side
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

7. Law of Cosines – Finding a Missing Side14
75º 43 A
41.63 B

8. Law of Cosines – Finding a Missing Side
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

9. 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

10. 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