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15 November, 00:33

Find the intersection and union for L={-1,1,2} I={-1,3,7}

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  1. 15 November, 01:02
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    Intersection means elements both have. Both sets have - 1 but they have nothing else in common so the intersection is {-1}

    Union means combining the sets so {-1, 1, 2, 3, 7} Note that I only wrote 1 twice. No duplicates allowed!
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