SOLUTION: What is the exact value of Sin (-7pi/2) ?
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Question 939306: What is the exact value of Sin (-7pi/2) ?
Answer by srinivas.g(540) (Show Source): You can put this solution on YOUR website!
as degrees
=
= as
=
=
= as sin 90 = 1
= -1
Result : Sin (-7pi/2) = -1
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