SOLUTION: Find the value of the following expression: tan^-1(1)

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Question 1138377: Find the value of the following expression: tan^-1(1)
Found 2 solutions by Boreal, ikleyn:
Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
This is 1 at pi/4 and 3 pi/4
Answer by ikleyn(52875)   (Show Source): You can put this solution on YOUR website!
.
In the interval  [0,2pi),  it is     and/or  .


In the extended sense, it is  ,  where k is any integer number.


Do not accept any different answer, since it is / (or would be) incorrect.



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