Answer:
I think it's the 3rd one
Step-by-step explanation:
because it makes sense
Ignore above
your equation is 2(cosx)^2-3cosx+1=0
use quadratic formula to get results
you will end up with
cosx=1 or cosx=1/2
so, x=0 or x=pi/3
Answer:
no there not
Step-by-step explanation:
.=1, any figure after . is o
so, 31/100