There is a 10.72 percent decrease:)
<span>cos 4x + cos 2x = 2 - 2 sin^2 2x - 2 sin^2 x
cos 4x + cos 2x = 1 + 1 − 2sin^2(2x) − 2sin^2(x)
cos 4x + cos 2x = (1 - 2sin^2(2x)) + (1 - 2 sin^2(x)
cos 4x + cos 2x = cos 4x + cos 2x</span>
Answer:
I think this is right 50 but I don't know I am 3rd grade
Step-by-step explanation:
<h2>so tha

s my answer</h2>
P(draw two red crayons) = (6÷10)×(5÷9)=0.333333333333…