SOLUTION: Find any acceptable formula for tan 3 (theta). You do not have to simplify your answer. Someone please help me with this one. What do I have to do? Do I have to use sum and

Question 981305: Find any acceptable formula for tan 3 (theta). You do not have to simplify your answer.

Someone please help me with this one. What do I have to do? Do I have to use sum and difference formulas to find this?
Found 2 solutions by Alan3354, macston:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Check "half angle formulas" on Wikepedia.

Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
Let x=theta
Start with:
.

.

Use Triple Angle Formula for Sine and Triple Angle Formula for Cosine:
.
Triple Angle Formula for Sine:

.
Triple Angle Formula for Cosine:

.
I'm not sure how far you have to carry this to get an "acceptable" formula, but this should get you started.
RELATED QUESTIONS
Using techniques with sum and difference formulas, find any acceptable formula for cos... (answered by josgarithmetic,macston)
Hi. Please help me verify this equation as an identity: {{{sec(theta)/tan(theta)}}} +... (answered by Alan3354,AnlytcPhil)
Simplify: Use only positive exponents to write your answer. 4t^4w^7*3x^-9x4w^-3*6t^4... (answered by ankor@dixie-net.com)
Someone please help me with it. Find tan theta + sin theta for the angle theta. Hyp=... (answered by Fombitz)
Can someone PLEASE help me with this problem? Thank you! If tan(theta)=9/8 and... (answered by scott8148)
Can someone please help me with this problem? I don't know exactly how to answer in... (answered by stanbon)
Use tan2θ= sin2θ/cos2θ to prove the double angle formula for tangent:... (answered by ikleyn)
Please help me answer this question: For all valuesof "theta", the expression... (answered by stanbon)
Find all solutions of the equation in the interval [0,2pi) . cos(theta)=0.7125 If... (answered by richard1234)