1. Inverse Trig Functions Obj: Be able to evaluate inverse trig expressions. TS: Explicitly assessing information and drawing conclusions. Warm Up: Solve for x in the interval [0, π] cos(x) = -½

2. Definition of Inverse Trig y = arcsin(x) if and only if sin(y) = x Domain: Range: y = arccos(x) if and only if cos(y) = x Domain: Range: y = arctan(x) if and only if tan(y) = x Domain:Range:.

3. Definition of Inverse Trig y = csc -1 (x) if and only if csc(y) = x Domain: Range: y = sec -1 (x) if and only if sec(y) = x Domain: Range: y = cot -1 (x) if and only if cot(y) = x Domain:Range:.

4. Examples: Evaluate without calc

5. Examples: Approximate the values of each expression using your calculator.