SOLUTION: 8sin(π/5)sin(π/3)
I have an idea on how to solve this and got 4[Cos(2pi/15)-cos(8pi/15].
Please help
Thank you
Algebra.Com
Question 950270: 8sin(π/5)sin(π/3)
I have an idea on how to solve this and got 4[Cos(2pi/15)-cos(8pi/15].
Please help
Thank you
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
8sin( pi/5)sin(pi/3)
I have an idea on how to solve this and got 4[Cos(2pi /15)-cos(8pi /15).
***
Product to sum identity:
I believe you used this Identity to get the answer which is correct.
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