Answer:
66
Step-by-step explanation:
Answer:
122 months or just over 10 years
Step-by-step explanation:
Answer:
-cos(2A)
Step-by-step explanation:
We know that (a+b) (a-b) = a^2-b^2
So it means we can simplify to sin^2(A)-cos^2(A) and we know cos^2(A) - sin^2(A) = cos(2A) but we will just multiply by -1 and we get - cos(2A)
Answer:
TV #3
Step-by-step explanation:
The others cost more.
You use cos inverse and the answer is 84 degree
