Find a general solution to the differential equation using the
method of variation of parameters.
y''+ 25y= sec5t
The general solution is y(t)= ___
y''+9y= csc^2(3t)
The general solution is y(t)= ___
Find a general solution of the inhomogeneous equation y′′ + 2y′
+ 5y = f(x) for
the following cases: (i) f(x) = 1 (ii) f(x) = x2 (iii) f(x) = e−x
sin2x (iv) f(x) = e−x (v)
sin2x