Lesson

3.4 TRIGONOMETRIC EQUATIONS




After completing this section, you should be able to:

  • solve sine equations in degrees: \( \sin \theta = \displaystyle \dfrac{1}{2} \)
  • solve cosine equations in degrees: \( \sin \theta = \displaystyle \dfrac{1}{2} \)
  • solve tangent equations in degrees: \( \sin \theta = \displaystyle \dfrac{1}{2} \)
  • solve quadratic trigonometric equations in degrees: \( 2\sin^2 \theta -3 \sin \theta + 1 = 0 \)