SOLUTION: Find the exact value of sin (7Pi / 2)
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Question 316691: Find the exact value of sin (7Pi / 2)
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
radians = 180 degrees
radians = 90 degrees
radians = 90 + 90 + 90 + 90 + 90 + 90 + 90 = 630 degrees
= 1 3/4
This is a complete turn from 0 degrees back to 0 degrees and
then a 3/4 turn
This is the same as -90 degrees
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