SOLUTION: Please help me solve this equation using half angle formula: sin 22 degrees 30' I am not sure where to begin solving.

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Question 583821: Please help me solve this equation using half angle formula: sin 22 degrees 30'
I am not sure where to begin solving.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let

Then and




so since both 22.5 and 45 degrees are first quadrant angles making the sin positive:




John

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