SOLUTION: Factor sin8Θ + 2sin4Θcos4Θ + cos8Θ?
Verify (cos2Θ + sin2Θ)/(cosΘ) = secΘ?
Algebra.Com
Question 478827: Factor sin8Θ + 2sin4Θcos4Θ + cos8Θ?
Verify (cos2Θ + sin2Θ)/(cosΘ) = secΘ?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If those are exponents:
Sub x for sine and y for cosine:
Can you do it now?
------------------
(cos^2 + sin^2)/cos = sec
1/cos = sec
I'm convinced.
RELATED QUESTIONS
secΘ-2tanΘ=0 (answered by tommyt3rd,solver91311)
How do you solve cos2Θ = cosΘ where Θ, 0° ≤ Θ < 360°
(answered by poliphob3.14)
How do you solve: where Θ, 0° ≤ Θ < 360°
cos2Θ =... (answered by htmentor)
Prove each identity(Show all Work)
sec(Θ)+tan(Θ)
____________... (answered by shree840)
if 0≤Θ<360°, solve sec^2 (2Θ) +2sec(2Θ) =... (answered by KMST)
Solve on indicated interval: 0°≤Θ<2π Find EXACT answers.... (answered by richard1234)
If sin Θ = 2/3 and tan Θ < 0, what is the value of cos... (answered by stanbon)
If sin Θ = 5 over 6, what are the values of cos Θ and tan Θ
(answered by lwsshak3)
If sin Θ = 5/6 , what are the values of cos Θ and tan... (answered by Maruf)