DFT and FFT application in signal processing
I prefer to give tips by comments but i don't have the right jet…
on the questions a, c and e you have look to the delta between 2 frequencies.
what is the space between each frequency and how much is the delta frequency of you're sampled time.
Probably questions B,D and f also but i'm not for shure because that a bit more complicated and had never done it myself...