compute the following exactly a sinsin raised to 1 superscri

compute the following exactly a. sin(sin raised to -1 superscript (-0.854467)) b. cos raised -1 (cos(-9pi/22)) c. sin raised -1(sin(5pi/6)) I need step by step - these will be on my exam Wednesday thanks

Solution

a.) sin[sin^-1(-0.854467)] = sin(-58.70º) = -0.85446

b.) cos^-1[cos-9pi/22)] = cos^-1(0.2817) = 73.6383º

c.) sin^-1[sin(5pi/6)] = sin^-1(1/2) = pi/6