Electronics and Communication Engineering - Signals and Systems - Discussion

Discussion Forum : Signals and Systems - Section 8 (Q.No. 27)
27.
The waveform shown in the given Figure can be written as
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4)
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4) - u(t - 5)
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4) - 4u(t - 5)
v(t) = u(t - 1) + u(t - 2) + u(t - 3) + u(t -4) + 4u(t - 5)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.

Swagath said:   1 decade ago
Trick:

Final value - Initial value.

Suppose here the graph shows that 0 to 1 increasing,

So 1-0=1.

=>>>1.u(t-1).

1 to 2.

So 2-1=1.

=>>>1.u(t-2).

And so on...

At last 4 to 0 decreasing.

So 0-4=-4.

=>>-4.u(t-5).

If any one know other trick please post.

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