Trigonometric Equations that Require Factoring - Concept

Concept Concept (1)

Solving second degree trig functions can be accomplished by factoring polynomials into products of binomials. When factoring trigonometric equations, we can use the zero product property to set up two first degree trig equations that you can solve using the unit circle. If an equation has sine and cosine, we substitute for one with an identity.

Sample Sample Problems (3)

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Trigonometric Equations that Require Factoring - Problem 1
Problem 1
How to solve a sine equation by factoring: 2 sin^2(x) - 3sin(x) + 1 = 0.
Trigonometric Equations that Require Factoring - Problem 2
Problem 2
How to solve a tangent equation by factoring: tan^2(x) - tan(x) - 2 = 0.
Trigonometric Equations that Require Factoring - Problem 3
Problem 3
How to solve a sine and cosine equation by factoring: -2sin^2(x) - 5cos(x) + 4 = 0.