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29 November, 16:10

Which relation is a function?

{ (1,2), (2, 1), (1, 3), (3,1) }

{ (1,2), (3, 4), (5, 6), (1,8) }

{ (0,2), (0, 4), (0, 6), (0,8) }

{ (1,2), (2, 3), (3, 4), (4,5) }

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  1. 30 November, 14:51
    0
    The last one is a function.
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