[" 4.Verify that "y=A cos2x+B sin2x" is a solution of the differential equation "],[qquad (d^(2)y)/(dx^(2))+4y=0]

Verify that y=A cos 2x-B sin2x is the general solution of the differential equation (d^(2)y)/(dx^(2))+4y=0.

Show that y=Acos2x+Bsin2x is a solution of the differential equation (d^(2)y)/(dx^(2))+4y=0

Verify that y=A cos x-B sin x is a solution of the differential equation (d^(2)y)/(dx^(2))+y=0

Verify that y=A cos x-B sin x is a solution of the differential equation (d^(2)y)/(dx^(2))+y=0

Verify that y=4sin3x is a solution of the differential equation (d^(2)y)/(dx^(2))+9y=0

Verify that "y"="A c o s x"-"B s i nx" is solution of the differential equation. ("d"^(2"y"))/("dx"^2)+"y"=0

Verify that the function y =4 sin 3x is a solution of the differential equation (d^(2)y)/(dx^(2))+9y=0

Verify that "y"="Acos x"-"Bsinx" is solution of the differential equation (d^2y)/("dx"^2)+"y"=0

Show that the function y= A cos 2x - B sin 2x is a solution of the differential equation (d^(2)y)/(dx^(2)) + 4y = 0