SOLUTION: cos &#952; =4/5 and 0° < &#952; < 90° Find cos 2/&#952;

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Question 1065766: cos θ =4/5 and 0° < θ < 90°
Find cos 2/θ
Answer by ikleyn(52925) About Me  (Show Source):
You can put this solution on YOUR website!
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Find WHAT ??