Hmmmm... I think I have lost it... it's domain is ## R## and has a range ## (0, \pi)##. So ##cot^{-1}(-1)=3\pi /4## not ##-\pi /4##.Raghav Gupta said:
mooncrater said:
The standard range used for the arccotangent is (0, π). Thus the arccotangent function always returns a positive value.epenguin said:If it is not equal to the x you took, it is equal to
| (the x you took) |
and there is a | | in the problem.
I think the answer you have been given is wrong and the answer is | x | .
You seem to have been given a few wrong answers and even wrong questions, or at least at the limit thereof.
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