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Mathematics 9 Online
OpenStudy (anonymous):

\[sin\left[tan^{-1}(-1)\right]\]

OpenStudy (anonymous):

|dw:1362687005543:dw| one of two answers?

zepdrix (zepdrix):

The inverse functions are only defined in 2 quadrants. So you'll always have 1 value coming out of the inverse function.

zepdrix (zepdrix):

|dw:1362687091396:dw|

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