SOLUTION: Fins all exact solutions on (0, pi) for 2 cos^2(t)

SOLUTION: Fins all exact solutions on (0, pi) for 2 cos^2(t) - 3 cos(t) = -1

Question 1176516: Fins all exact solutions on (0, pi) for 2 cos^2(t) - 3 cos(t) = -1
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

It's a quadratic equation with cos(t) as the variable. Solve like a quadratic polynomial equation:
(1) get everything on one side, set equal to 0 on the other side
(2) factor the quadratic
(3) the solutions are whatever makes either factor equal to 0

or

You can finish from there.

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