Let's check.
x = 5π/24
4x = 5π/6
cos 4x = cos(5π/6) = cos 150° = -√3/2
cos² 4x = (-√3/2)^2 = 3/4
4 cos² 4x -3 = 4 (3/4) - 3 = 0
Answer: TRUE
5/8=10×w this is my equation then i divide by 10 on both sides
w=6.25
Nearly 50% increase chance of employment by a college degree.
Answer:
5/4
Step-by-step explanation:

Rewrite by multiplying by the reciprocal.

Multiply and reduce.
