nalisadris nalisadris
  • 26-02-2016
  • Mathematics
contestada

Rewrite the expression in terms of the first power of the cosine: cos^4xtan^2x

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taskmasters
taskmasters taskmasters
  • 03-03-2016
Here's how to rewrite cos^4x tan^2x in the first power of cosine.
See the attached image.

First step, find the trigonometric identity of tan^2x.
Then simply everything until you only get cos x.
Remove all the exponents. Simplify.
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