I have a problem that says to prove the superposition of initial conditions gives superposition of corresponding motion for two coupled oscillators. My question is: What do they mean by coupled oscillators? Do they mean coupled pendulums? Double LC circuits? If it's coupled pendulums are the pendulums the same mass? I know how to do the math for the specific types of coupled oscillators, but I don't think there is a general way to derive the motion of coupled oscillators without specifics about what type oscillator it is.