- #1
Logitech
- 5
- 0
Rewrite the expression in terms of the first power of the cosine:
cos^6 x
My guess would be that it would be cos(x)*cos(x)*cos(x)*cos(x)*cos(x)*cos(x)
I'm not sure if that is it, or any way to start the problem even
Please help me
edit :
cos^6(x)=cos^2(x)*cos^2(x)*cos^2(x)
=.5(1+cos2x)*.5(1+cos2x)*.5(1+cos2x)
then ?
?
cos^6 x
My guess would be that it would be cos(x)*cos(x)*cos(x)*cos(x)*cos(x)*cos(x)
I'm not sure if that is it, or any way to start the problem even
Please help me
edit :
cos^6(x)=cos^2(x)*cos^2(x)*cos^2(x)
=.5(1+cos2x)*.5(1+cos2x)*.5(1+cos2x)
then ?
?
Last edited: