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				| 1. | How will you obtain given function from unit step signals? | 
| A. | = 1 for -1‚â§t‚â§1 | 
| B. | |
| C. | u (t) – u (t+2) | 
| Answer» C. u (t) ‚Äö√Ñ√∂‚àö√ë‚àö¬® u (t+2) | |