El profesor se sorprenderá mucho al ver tu solución correcta😉
/ 2 \ 2 d |sin(x) cos (x)| d --(y(x))*cos(x) - |------ - -------|*y(x) + ---(y(x)) = 0 dx \ 2 4 / 2 dx
-(sin(x)/2 - cos(x)^2/4)*y + cos(x)*y' + y'' = 0
/ 2 2 4 4 2 3 3 4 2 3 4 2 \ / 3 3 2 2 2 3 \ | x *cos (x) x *cos (x) x *sin(x) x *cos (x) x *sin (x) x *cos(x)*sin(x) x *cos (x)*sin(x)| | x*cos(x) x *cos (x) x *cos (x) x *sin(x) x *cos(x)*sin(x)| / 6\ y(x) = C2*|1 - ---------- - ---------- + --------- + ---------- + ---------- - ---------------- + -----------------| + C1*x*|1 - -------- - ---------- + ---------- + --------- - ----------------| + O\x / \ 8 128 4 24 96 12 96 / \ 2 48 8 12 24 /