Let `A={1,2,3,4},B={1,5,9,11,15,16}andf={(1,5)

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Let `A={1,2,3,4},B={1,5,9,11,15,16}andf={(1,5),(2,9),(3,1),(4,5),(2,11)}.` Are the following true ? (i) f is a relation from A to B (ii) f is a function from A to B. Justify your answer in each case.

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