Sin 2x 2 Cos X 0

Free integral calculator solve indefinite definite and multiple integrals with all the steps.

Sin 2x 2 cos x 0. X pi 2 pi 6 pi 2 or 5 pi 6 plus multiples of 2 pi. I cannot tell whether you have learned the double angle formulas yet so i will develop a solution without them. Notice that cos 2 x cos x 2 is not the same thing as cos 2x. Free trigonometric equation calculator solve trigonometric equations step by step.

It is indeed true that sin 2 x 1 cos 2 x and that sin 2 x frac 1 cos 2x 2. First observe that cos u cos v when u v 2n pi or u v 2n pi for any integer n. Solution for for sin 2x cos x 0 use a double angle or half angle formula to simplify the equation and then find all solutions of the equation val 0 27. We then have sin 2x cos pi 2 2x.