Electronics and Communication Engineering - Signals and Systems

31.
Choose the correct option
var (X) = σx2
σ2 = E(X2) - μ2
var (CX) = C2 Var (X)
all
Answer: Option
Explanation:
No answer description is available. Let's discuss.

32.
Let x(t) ↔ X(jω) be F.T pair. The Fourier transform of the signal x(5t - 3) in terms of X(jω) is given as
Answer: Option
Explanation:
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33.
For matrix A, A-1 A = 1
True
False
Answer: Option
Explanation:
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34.

Assertion (A): The Fourier series of the wave shown in the figure does not contain even harmaonics

Reason (R): If f(t) = - f(t ± T/2) the function is said to have half wave symmetry.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is true, R is false
A is false, R is true
Answer: Option
Explanation:
No answer description is available. Let's discuss.

35.
The following table gives some time functions and the Laplace transforms

Of these correctly matched pairs are
2 and 4
1 and 4
3 and 4
1 and 2
Answer: Option
Explanation:
No answer description is available. Let's discuss.