Trigonometry
posted by AwesomeGuy on .
Solve the equation for all values of x.
2cos²xsin x+1=0, on the interval [0,2π).

(2cosx1)(cosx+1) = 0
so, where is cosx = 1/2 or 1?
posted by AwesomeGuy on .
Solve the equation for all values of x.
2cos²xsin x+1=0, on the interval [0,2π).
(2cosx1)(cosx+1) = 0
so, where is cosx = 1/2 or 1?