WebMar 26, 2016 · Solve 2sin 3 x = sin x for all the possible angles in degrees. Move the term on the right to the left by subtracting it from each side. 2sin 3 x – sin x = 0. Factor out sin x. sin x (2sin 2 x – 1 = 0) Set each factor equal to 0. sin x = 0 or 2sin 2 x – 1 = 0. Solve the two equations for the values of x that satisfy them. WebVertex form. Graphing quadratic inequalities. Factoring quadratic expressions. Solving quadratic equations w/ square roots. Solving quadratic equations by factoring. Completing the square. Solving equations by completing the square. Solving equations with the quadratic formula. The discriminant.
Simplify a Trigonometric Expression - WebMath
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Factoring Trigonometric Expressions – Explanation and Examples
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