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Exact Values
100
Find the exact value of sin 30°
What is 1/2
200
What is the exact value of cos 180°
What is -1
300
Find the exact value of cos 135°
__ What is -cos 45° = -√2 /2
400
Find the exact value of cot 315°
What is -cot 45° = -1
500
Find the exact value of sin (-210°)
What is sin 30° = 1/2