| A. |
<img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/13-165-1.png"> |
| B. |
<img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/13-165-2.png"> |
| C. |
<img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/13-165-3.png"> |
| D. |
<img src="/_files/images/electronics-and-communication-engineering/signals-and-systems/13-165-4.png"> |
