SOLUTION: sqrt(2+sqrt(2cos4A))=2cosA

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Question 1040275: sqrt(2+sqrt(2cos4A))=2cosA
Answer by ikleyn(52847) About Me  (Show Source):
You can put this solution on YOUR website!
.
Unclear.

1. There is no question. It is enough to ignore/disregard your post.

2. Is it an identity to prove? Or is it an equation?

3. If it is this identity sqrt%282%2Bsqrt%282cos%284A%29%29%29 = 2cosA,

then it is simply incorrect.

Check it at A = pi%2F2.

4. Why I should decipher your writing?
It is your responsibility to provide correct input.
If you are not able to do it, do not post.