Suppose X and Y are sets and |X| and |Y| are their respective cardinalities. It is given that there are exactly 97 functions from X to Y. From this one can conclude that
(A) |X|=1,|Y|=97
(B) |X|=97,|Y|=1
(C) |X|=97,|Y|=97
(D) None of the above
Answer: (A)
Explanation:
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GATE | GATE CS 1996 | Question 3
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