To solve the given equation, we will first use the Zero Product Property to solve for cosθ. Then we will use the unit circle to find the exact values of θ that satisfy the equation.
Solving the Equation for cosθ
Let's start by using the Zero Product Property to solve the equation for cosθ.
We obtained two values for cosθ. The cosine of an angle in standard position is the x-coordinate of the point of intersection P of its terminal side and the unit circle.
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