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    Maths-
    General
    Easy

    Question

    If A equals left curly bracket 1 comma 2 comma 3 right curly bracket comma B left curly bracket 3 comma 4 right curly bracket comma C left curly bracket 4 comma 5 comma 6 right curly bracket . Then, A union left parenthesis B intersection C right parenthesis is

    1. left curly bracket 1 comma 2 right curly bracket
    2. left curly bracket ϕ right curly bracket
    3. left curly bracket 4 comma 5 right curly bracket
    4. left curly bracket 1 comma 2 comma 3 comma 4 right curly bracket

    The correct answer is: left curly bracket 1 comma 2 comma 3 comma 4 right curly bracket

      table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row cell B intersection C equals left curly bracket 4 right curly bracket. end cell row cell therefore A union left parenthesis B intersection C right parenthesis equals left curly bracket 1 comma 2 comma 3 comma 4 right curly bracket end cell end table

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