 
			 
			MCQOPTIONS
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				| 1. | Which of the following relation is true? | 
| A. | r<sub>xy</sub>(l)= r<sub>xy</sub>(-l) | 
| B. | r<sub>xy</sub>(l)= r<sub>yx</sub>(l) | 
| C. | r<sub>xy</sub>(l)= r<sub>yx</sub>(-l) | 
| D. | None of the mentioned | 
| Answer» D. None of the mentioned | |