Q.

Let R ={ (a,b),(c,d),(b,b)}, S = {(d,b),(c,b),(a,d)} then R composite S = ___________

A. {(a,e),(c,b),(b,e)}
B. {(d,b),(c,b),(a,d)}
C. {(a,b),(b,b)}
D. {(c,b)}
Answer» D. {(c,b)}
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