anonymous
  • anonymous
prove that (sin 2theta +1)/cos2theta =(cos theta +sin theta)/(cos theta -sin theta)
Mathematics
chestercat
  • chestercat
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TuringTest
  • TuringTest
is that \[\sin(2\theta)\]or\[\sin^2\theta\]?
anonymous
  • anonymous
sin(2θ)
anonymous
  • anonymous
Multiply the numerator and denominator of the right hand side by \( (\cos \theta + \sin \theta )\) and the result should follow instantly.

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anonymous
  • anonymous
alright lemme try
anonymous
  • anonymous
\[[( \sin 2\theta +1)/ \cos2\theta ] \times(\cos \theta +\sin \theta)\]
anonymous
  • anonymous
is this what you asked me to do?
TuringTest
  • TuringTest
no that's the left-hand side do the other side instead
anonymous
  • anonymous
OHH I SEEE
anonymous
  • anonymous
i got the answer hurray!
anonymous
  • anonymous
i have another question i need help with
anonymous
  • anonymous
prove that \[\cos 4x =8\cos ^{4}x - 8\cos ^{2}x +1\]
anonymous
  • anonymous
New thread please :)
anonymous
  • anonymous
ok

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