Answer:
Trailer Park Boys I believe
Answer:
1. k
2. 12r-20
3. 10n-13
4. -6x
5. -11r
6. 4x+11
Step-by-step explanation:
I assume you're supposed to establish the identity,
cos(A) cos(2A) cos(4A) = 1/8 sin(8A) / sin(A)
Recall the double angle identity for sine:
sin(2<em>x</em>) = 2 sin(<em>x</em>) cos(<em>x</em>)
Then you have
sin(8A) = 2 sin(4A) cos(4A)
sin(8A) = 4 sin(2A) cos(2A) cos(4A)
sin(8A) = 8 sin(A) cos(A) cos(2A) cos(4A)
==> sin(8A)/(8 sin(A)) = cos(A) cos(2A) cos(4A)
as required.
Minus 5 from both sides so we have 3a=-19 now divide both sides by 3 so we have a=-6 1/3
5
Mark brainliest please
Hope this helps you