2 Which Of The Given Signals Are Periodic A X T 4 Cos 5pt 3199796

4. Find the periodicity of the following signal. x(t)=cos((2p/7)t)sin((3p/5)t)
a) 30
b) 7
c) 35
d) 5/3
5. Find the fundamental period of 1+sin^2 (3p/5)n.
a) 10/3
b) 5
c) 3p/5
d) None of the mentioned


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