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Question: Can't solve arctan equation

Question:Can't solve arctan equation

Doug Telford 10 Maple 2016
solve arctan
July 22 2017
2

Trying to solve:

solve (arctan((2*x^2-1)/(2*x^2+1)) = 0, x);

The answer I get is the original function:

 
            arctan((2*x^2-1)/(2*x^2+1))

 

This example is from the Maple book by Keck, and he shows the Maple V answer as

1/2 sqrt(2) -1/2 sqrt(2)     

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