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Contents
Inverse Function 1 2
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Inverse Trigonometric Functions 
Derivatives
of the Inverse Functions
Inverse Sine Function:
Let y = sin-1 x
Then, x = sin y
the
positive square root is taken as the range of values of y is from -p/2
to p/2
(principal values of the inverse function), for which cos y is positive.
Inverse Cosine Function:
Let y = cos-1 x
Then, x = cos y
the
positive square root is taken as the range of values of y is from 0 to p
(principal values of the inverse function), for which sin y is positive.
Inverse Tangent Function:
Let y = tan-1 x
Then x = tan y
Examples
on the next page.
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