x के सापेक्ष अवकल गुणांक निकालें
`-ke^(x)+cos x`

(cos x)/(cos (x+a))

Prove that (1 + sin x-cos x) / (1 + sin x + cos x) + (1 + sin x + cos x) / (1 + sin x-cos x) = 2cos ecx

(cos x)/( cos (x - a))

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

Solutions of the differential equations (dy)/(dx) + (y)/(x) = sin x is : a) x(y+cos x ) = sin x+ c b) x(y-cos x ) = sin x+c c) x( y cos x ) = sin x +c d) x(y-cos x) = cos x+ c

(sin 3x + sin x) sin x + (cos 3x - cos x) cos x =0