Inverse Trig Functions
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range (outputs) of inverse sine
[-pi/2, pi/2]
range (outputs) of inverse tangent
[-pi/2, pi/2]
inverse functions
input: ratio, output: angle x and y values are switched
interpret arcsin(1/2)=30
the angle whose sin is 1/2 is 30 degrees
tan graph
vertical asymptotes: pi/2+2pi(k) period: pi
range (outputs) of inverse cosine
yE[0, pi]
