1. Evaluate sin 258o to four significant digits.
sin 258o = -0.2079 sin 258o = -0.9781 sin 258o = -1.022
2. Evaluate cos 316o to four significant digits. cos 316o = -0.6947 cos 316o = 0.7193 cos 316o = 1.390
3. Evaluate cot 0o to four significant digits. cot 0o = 0.000 cot 0o = undefined cot 0o = 1.000
4. What quadrant is angle A locate in if cos A is greater than 0 and sin A is less than 0.
Quadrant IV Quadrant III Quadrant II
5. What quadrant is angle A locate in if cos A is less than 0 and sin A is less than 0.
Copyright © 2006 Donna Tupper.
