SOLUTION: how to establish cot^2 x/2 = (sec x + 1) / (sec x -1) ?
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Question 944383: how to establish cot^2 x/2 = (sec x + 1) / (sec x -1) ?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
how to establish cot^2 x/2 = (sec x + 1) / (sec x -1) ?
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start with left side:
Identity:
verified: left side=right side
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