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1. |
Let R={(1,b),(3,d),(2,b)} and S={(b,4),(2,5),(d,a)} be a relation then R composition S=____. |
A. | {(1,b),(3,d),(2,b)} |
B. | {(1,4),(3,a),(2,4)} |
C. | {(4,b),(2,5),(3,a)} |
D. | {(1,d),(3,b),(2,c)} |
Answer» C. {(4,b),(2,5),(3,a)} | |