anonymous
  • anonymous
I need help with Trigonometry
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
I need it explained step by step
AkashdeepDeb
  • AkashdeepDeb
Ask Away!, :D
anonymous
  • anonymous
\[\tan 4 \theta + \tan 2 \theta/ 1-\tan 4\theta \tan 2 \theta\]

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AkashdeepDeb
  • AkashdeepDeb
There is this identity that states this... tan(A+B) = (tanA + tanB)/(1-tanA.tanB) Can you get your answer from the identity above?? :D
anonymous
  • anonymous
I have to Rewrite the expression as a trigonometric function of a single angle measure.
AkashdeepDeb
  • AkashdeepDeb
Exactly! Do it like identity tells you. :D
anonymous
  • anonymous
what do you do just add them together?
anonymous
  • anonymous
Im new to this trig stuff...book doesnt help much at all
AkashdeepDeb
  • AkashdeepDeb
Yes. Your answer equals tan(4 theta + 2 thta) = tan(6 theta) We don't JUST add them up. We follow the identities. LEARN THE TRIGONOMETRIC IDENTITIES!! :D Understood this? Check out some Internet links.
AkashdeepDeb
  • AkashdeepDeb
You just have to learn these identities and apply them in your calcs.. http://www.sosmath.com/trig/Trig5/trig5/trig5.html Check out some Utube/KhanAcademy vids. :)
anonymous
  • anonymous
thanks
AkashdeepDeb
  • AkashdeepDeb
:)

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