MCQOPTIONS
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| 1. |
Let R1 be a relation from A = {1, 3, 5, 7} to B = {2, 4, 6, 8} and R2 be another relation from B to C = {1, 2, 3, 4} as defined below:i. An element a in A is related to an element b in B (under R1) if a * b is divisible by 3. |
| A. | nii. An element a in B is related to an element b in C (under R<sub>2</sub>) if a * b is even but not divisible by 3. Which is the composite relation R<sub>1</sub>R<sub>2</sub> from A to C? |
| B. | R<sub>1</sub>R<sub>2</sub> = {(1, 2), (1, 4), (3, 3), (5, 4), (5,6), (7, 3)} |
| C. | |
| D. | R<sub>1</sub>R<sub>2</sub> = {(1, 2), (1,6), (3, 2), (3, 4), (5, 4), (7, 2)} |
| E. | R<sub>1</sub>R<sub>2</sub> = {(2,2), (3, 2), (3, 4), (5, 1), (5, 3), (7, 1)} |
| Answer» C. | |