I have the following differential equation: $$y''+y=\cos(t)\cos(2t)$$
Maybe something can be done to $\cos(t)\cos(2t)$ to make it easier to solve. Any ideas?
Thanks in advance.
I have the following differential equation: $$y''+y=\cos(t)\cos(2t)$$
Maybe something can be done to $\cos(t)\cos(2t)$ to make it easier to solve. Any ideas?
Thanks in advance.