meeg
meeg meeg
  • 01-04-2017
  • Mathematics
contestada

Verify the identity.

cos 4x + cos 2x = 2 - 2 sin^2(2x) - 2 sin^2 x

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JTN51
JTN51 JTN51
  • 01-04-2017
So are you trying to simplify one side to get it to look like the other?
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