Question

d^y/dx^2+4dy/dx-12y=cos2x

Answer 1

dy dx. − 2y =1+4x. 2. (ii) 2 d2y dx2 + dy dx. − y = sin 2x. (iii) d2y dx2− 8 dy dx. + 16y = ... Lsin 2x + M cos 2x dy dx. = 2Lcos 2x − 2M sin 2x d2y dx2. = −4Lsin 2x − 4M cos 2x. Substitute ...