El profesor se sorprenderá mucho al ver tu solución correcta😉
-x e --- + sec(y(x)) = 0 dx
sec(y) + exp(-x)/dx = 0
/ / ___________\ \ | | / -2*x | | | | / e | x| y(x) = -I*log|-dx*|1 + / 1 - ----- |*e | | | / 2 | | \ \ \/ dx / /
/ / ___________\ \ | | / -2*x | | | | / e | x| y(x) = -I*log|dx*|-1 + / 1 - ----- |*e | | | / 2 | | \ \ \/ dx / /