6.7.3 Solving an Equation Involving an Inverse Trigonometric Function

Question 1

notes

Answer 1

• To solve an equation containing an inverse trigonometric function:
  • Determine what the equation says by ‘untangling’ it. Think of the inverse trig function as
  “the angle whose _______ is….” For example, think of sin-1 as “the angle whose sine is .”
  • After untangling, solve the equation normally.
  • Graph the function to check that all solutions were found.