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Electronics and Communication Engineering - Signals and Systems - Discussion

Discussion Forum : Signals and Systems - Section 3 (Q.No. 43)
Signals and Systems
43.
If x1(t) = 2 sin pt + cos 4 pt and x2(t) = sin 5 pt + 3 sin 13 pt then
x1, x2 both periodic
x1 x2 both not periodic
x1 periodic, x2 not periodic
x1 is not periodic ; but x2 is periodic
Answer: Option
Explanation:

.

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