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Relations And Functions


The relation R defined on the set of natural numbers as {(a, b) : a differs from b by 3}, is given by 
Options:
A. {(1, 4, (2, 5), (3, 6),.....}
B. {(4, 1), (5, 2), (6, 3),.....}
C. {(1, 3), (2, 6), (3, 9),..}     
D. None of these

 Next Question
Answer: Option B
: B

R={(a,b):a,bN,ab=3}={((n+3),n):nN} ={(4,1),(5,2),(6,3), .......} .

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