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Home > PC3 > Chapter 8 > Lesson 8.3.5 > Problem 8-150

8-150.
  1. Solve each of the following equations for 0 ≤ θ < 2π. Homework Help ✎

    1. sin(2θ) = 0

    2. sin2(θ) = cos2(θ)

1. Substitute using the Double-Angle Formula.
2. Set each factor equal to 0 and solve.

1. Set the equation equal to 0.
2. Factor.
3. Set the factors equal to 0 and solve.
4. Note the domain.