Question

8cos^5

Answer 1

how do i get it so that there are no powers

Answer 2

what are you trying to do?

Answer 3

i mean...you can use trig identities:
ignoring the 8, we have
cos^5(x) = cos^2(x) cos^2(x) cos(x) because 2+2+1=5
and you can sub in the trig identity for cos^2 which is (1/2)(1+cos(2x)

Answer 4

@Gwynnia You are right