Please can you help me with exam test preparation. I have take the below past year exam paper.
I want to know if I am on the correct track and my answers are correct.
x(t) = cos(50.pi.t + 30) which is sampled at 50Hz
to find the sampled signal, F= 0.5 X 50 = 25Hz, Since w= 2.pi.f (angular frequency)
Now I took the sampled Frequency F= 25/50 = 1/2 The Period = 1/F and then The Period = 2
Now for he second question, How many full periods of x(t) are required to obtain the sampled period?
I took the Frequency (F= 0.5 X 50 = 25Hz and the P= 1/f= 1/25 = 0.04
the Period is 0.04 and the Period of the above question is 2/0.04 which is 50.
but the answer is not there so from the below.
Please can you help, me.