weingartmatt10 weingartmatt10
  • 07-11-2016
  • Mathematics
contestada

Use the power-reducing formulas as many times as possible to rewrite the expression in terms of the first power of the cosine. 2 sin4 2x

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lizzythecoolkid
lizzythecoolkid lizzythecoolkid
  • 07-11-2016
I guess you need to do 42x2=84
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