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Warm Up . Let g(x) = {(1, 3), (2, 5), (4, 10), (-3, 7)}. What is g -1 (x)? Write the inverse of the function: f(x) = 2x – 3 Determine whether the function is one-to-one. a) y = x 2 b) y = x 3 c) y = cos x Evaluate :
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Warm Up • Let g(x) = {(1, 3), (2, 5), (4, 10), (-3, 7)}. What is g-1(x)? • Write the inverse of the function: f(x) = 2x – 3 • Determine whether the function is one-to-one. a) y = x2 b) y = x3 c) y = cos x • Evaluate: (a) cos (π/6) (b) cos (5π/6) (c) cos (-π/6) (d) sin(π/3) (e) sin (-π/3) (f) sin (2π/3)
Inverse Trig Functions Relate the concept of inverse functions to trig functions
Restricted Domain of sine = Range of sine = Domain of arcsin = Range of arcsin = Ex: Find arcsin(-½)
Examples: • Determine the exact value of each of the following. 1) arccos (-1/2) = 2) arcsin (-1/2) = 3) arccos (0) = 4) arcsin (0) = 5) arccos (-1) = 6) arcsin (-1) = 7) 8)
Use your calculator to find the approximate value of… • arcsin(-0.258) • arctan(28.3)