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ECE · Q461

Signal Processing

Engineering and GATE · ECE · question 461

Q461

If x1(t) = 2sinπt + cos4πt and x2(t) = 2sin5πt + 3sin13πt, then

A.
x1 and x2 both are periodic
Answer
B.
x1 and x2 both are not periodic
C.
x1 is periodic, but x2 is not periodic
D.
x1 is not periodic, but x2 is periodic

Answer: Option A

Solution

Answer: Option A
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