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I need help ASAP please it’s due tonight!
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I need help ASAP please it’s due tonight!

I need help ASAP please it’s due tonight!-example-1
User Myaut
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1 Answer

2 votes

Explanation:

Use the Pythagorean Identity


\cos {}^(2) ( (x)/(2) ) = 1 - \sin {}^(2) ( (x)/(2) )

User Neill Herbst
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