Trigonometric Equations

  1.   \rhd Video 1: Solving sinusoidal equations of the form \sin(x) = d. (6:10) Sal finds the expressions that together give all solutions to the equation \sin(x) = \dfrac{1}{3}.
  2.   \rhd Video 2: Solving \cos(\theta) = 1 and \cos(\theta) = -1 using the graph of \cos(x). (5:18)
  3.   \star Practice: Solve equations like \sin(x) = d or \cos(x) = d where d is any number. (4 problems)
  4.   \star Practice: Solve equations of the type a \cdot\sin(bx+c) = d or  a \cdot \cos(bx+c) = d. (4 problems)