Asked by neha

2cosx=√2+√2+2cos4x

Answers

Answered by Steve
not sure just how sloppy you are being with the parentheses, You might mean

√2+√(2+2cos4x)
or
√(2+√(2+2cos4x))

either way it's kinda sloppy
first step is probably to see what cos4x reduces to
Answered by Gopal
2cosx
Answered by deepak
2cosx
Answered by deepak
√2+√2+2cos4x=2cosx
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