I need help trying to sole tan(2x) =1- where x is more than or equal to 0 but x is less than or equal to pi

To solve this equation we need to obtain the angle which is Tan (2x)=1 ; ArcTan(2x) = 1

2x = 45 degrees = 45X0.01571 = 0.7069 radians. x then will be equal to 0.3535 radians which is greater than Zero and less than 3.141592 radians.

CHECK!!!!!!!!!!!!!!!!!!!!