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Need help solving this problem please ​

Need help solving this problem please ​
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3 votes
Need help solving this problem please ​

Need help solving this problem please ​-example-1
User Glenn Posadas
by
8.2k points

1 Answer

5 votes

Explanation:


\cos( ( \alpha )/(2) ) = \sqrt{ (1 - \cos( \alpha ) )/(2) } \\ = \sqrt{ (1 - ( - (15)/(17)) )/(2) } \\ = \sqrt{ (32)/(34) }

User Andrii Omelchenko
by
7.6k points
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