Math
posted by Micheal .
The graph of an inverse trigonometric function passes through the point (1, pi/2). Which of the following could be the equation of the graph?
Y=cos^1 x
Y=cot^1 x
Y=sin^1 x
Y=tan^1 x

Math 
Steve
well, sin(pi/2) = csc(pi/2) = 1
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