Which of the function of time represent (a) simple harmonic. (b) periodic but not simple harmonic. and (c) non periodic motion ? Give period for each case of periodic motion (omega is any positive constant), 3cos(pi//4-2omegat)

Which of the function of time represent (a) simple harmonic. (b) perio

1.	Which of the function of time represent (a) simple harmonic. (b) periodic but not simple harmonic. and (c) non periodic motion ? Give period for each case of periodic motion (omega is any positive constant), 3cos(pi//4-2omegat)
Answer» Solution :`3COS(pi//4-2omegat)= 3cos(2omegat-pi//4)`it is simple HARMONIC with a time PERIOD `T= (2PI)/(2omega)= (pi)/(omega)`