Cos(12x) = cos(6x+6x) = cos6xcos6x -sin6xsin6x = cos^2(6x) -sin^2(6x)
1 - cos(12x) = 1 - (cos^2(6x) -sin^2(6x)) = sin^2(6x) +cos^2(6x) - cos^2(6x) +sin^2(6x) = 2sin^2(6x)
so choice A. is right sure
D: none of the above
just in case, the answer is 26 miles, and you need to use the Pythagorean theorem
Answer:
10/3
Step-by-step explanation:
459.3 yards per hour. I hope this helped.
Answer:
125%
Step-by-step explanation:
this is because the difference is 25% so b is 125% more than a
