SOLUTION: What are cos 150° and sin 5(pi)/4 in exact form?

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Question 876287: What are cos 150° and sin 5(pi)/4 in exact form?
Answer by lwsshak3(11628) About Me  (Show Source):
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What are cos 150° and sin 5(pi)/4 in exact form?
cos150˚=-√3/2 (in quadrant II)
sin 5π/4=-√2/2 (in quadrant III)