2. |AUBUC|=|A|+|B|+|C|-|AnB|-|AnC|-BnC|+|ANBrci 1. IAUB|=|A|+|B|-|ANBI * TAUBUCI=|A]+IBI+ICI-IAnB|-IAnc|-BnC|+|ANBNC| Union of two sets Union of three sets Union of five sets a) Find an analogous equation for |AUBUCUDUE|. b) What is the maximum number of sets that can be made into a Venn diagram? The sets need not be all circles. c) 'n an equation like the one in part a) for the union of n sets how many terms must there be on the right side of the equation?

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