Does `cos omegat +sin2 omega t +cos 4 omega t ` represent periodic
Channel: Doubtnut
Date: 2020-03-29

Does `cos omegat +sin2 omega t +cos 4 omega t ` represent periodic motion ? If yes, then find the period`( omega` is any positive constant) . Hint `:` ( Each term represents a periodic function with different angular freuency . Find the smallest interval of time after which the sum of three terms repeats ) .