SOLUTION: cos( 2theta - Pi/2)= 1/2
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Question 425631: cos( 2theta - Pi/2)= 1/2
Answer by htmentor(1343) (Show Source): You can put this solution on YOUR website!
Using the trigonometric identity, , with
So we are left with ->
= 30 degrees, or = 15 degrees = = 0.2618 radians
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