Consider the following three continuous - time signals with a fundamental period of I = 1/2 : * ( + ) = COS ( 4 TTT ) , * ( + ) = sin ( 4 TTT ) , 2...

Im just not sure how to approach this problem. Could you include steps on solving it?

3. 25 . Consider the following three continuous - time signals with a fundamental period ofI = 1/2 :* ( + ) = COS ( 4 TTT ) ,* ( + ) = sin ( 4 TTT ) ,2 ( * ) = * ( + ) > ( t ) .( a ) Determine the Fourier series coefficients of * ( + ) .( 10 ) Determine the Fourier series coefficients of * ( + ) .( C ) Use the results of parts ( a ) and ( b ) , along with the multiplication property of thecontinuous - time Fourier series , to determine the Fourier series coefficients of2 ( t ) = * ( + ) > ( t ) .( d) Determine the Fourier series coefficients of z ( t ) through direct expansion of z ( t )in trigonometric form , and compare your result with that of part ( C ) .