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tan^(-1)(-1)...

`tan^(-1)(-1)`

Text Solution

Verified by Experts

The correct Answer is:
`-pi/4`
Range of `tan^(-1)` is `(-pi/2,pi/2)`
`therefore tan^(-1)(-1)=theta rArr tan theta=-1=-tanpi/4=tan(-pi/4)`
`rArr theta=-pi/4`.
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