Home » Signals and Systems » Signal and systems miscellaneous » Question

Signal and systems miscellaneous

Signals and Systems

  1. The period of the signal x(t) = sin
    t
    + cos
    t
    is—
    4 8
    1. 24π
    2. 12π
Correct Option: A

Given x(t) = sin
t
+ cos
t
48

Where, sin t/4 → x1(t)
cos t/8 → x2(t)
Fundamental period of
x1(t)= T1 =
= 8π
1
4

Fundamental period of
x2(t)= T2 =
= 16π
1
8

The period of signal x(t) is given as
T1
=
= 0·5
T216π

or T1 = 0·5
T2 = 8π
Hence, alternative (C) is the correct choice.



Your comments will be displayed only after manual approval.