Q10

Solve the given differential equation by variation of parameters. y" + y = tan x Hint: Use the following formula. Y = -yu+y,ll, = -y dx + y 2.J dx P W W O y (x) = c 1 cos x + c 2 sin x - sin x In |sec x tan x| O y (x) = c 1 cos x + C 2 sin x - tan x In |sec x tan x| O y (x) = c 1 cos x + C 2 sin x - cot x In |sec x tan x] O y (x) = c 1 cos x + C 2 sin x - cos x In |sec x tan x]