anonymous
  • anonymous
Rewrite with only sin x and cos x. cos 2x - sin x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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myininaya
  • myininaya
cos(2x) you can use double angle identity
anonymous
  • anonymous
So then I would get cos^2x-sin^2x-sinx?
geerky42
  • geerky42
Yeah.

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geerky42
  • geerky42
There you go.
anonymous
  • anonymous
Then what? what do I do from there?
myininaya
  • myininaya
your directions seem to imply that is all you need to do
geerky42
  • geerky42
That it. You rewrote expression in term of sin x and cos x.
anonymous
  • anonymous
Just Kidding, I dont need to do anything else. Thank you soo much for the help!(:

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