# Math

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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 -

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

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