If y= a cos 2x + b sin 2x , then

If y = a cos 2 x + b sin 2 x , then

Find the differential equation whose solution is y = a cos 2x + b sin 2x .

Find the differential equation which representing the family of curve y=A cos 2x + B sin 2x , where A and B are constants.

Find the differential equation from the equation : y=e^x(a cos 2x +b sin2x ) where a and b are arbitrary constants.

If y =a cos x + (b + 2x) sin x then show that y" + y=4 cos x.

If y = a cos x + (b + 2x ) sin x then y _(2) + y =

If y= a sin x + b cos x then, y^(2) + (y_(1))^(2) = ……. (a^(2) + b^(2) ne 0)

Eliminate A and B from y = A cos 2x + B sin 2x + (1)/(2) e^(2x) .