Llvl10720-Turquoise9 years agoFebruary 14, 2017Solvedatan(1i*[1 - x^2i]/[1 + x^2i]) = a assume, -pi/2 < a <= pi/2 , solve, x ?1 reply1196 viewsTranslate All Hello Everyone. The question : atan(1i*[1 - x^2i]/[1 + x^2i]) = a assume, -pi/2 < a <= pi/2 , solve, x ? Thanks in advance. Regards.1_solve,-x-xmcd.zipOther