1.

यदि `A ={1, 3, 5, 6, 7}, B ={2, 3, 6, 8}` और `C ={1, 2, 3, 4}`, तो ज्ञात कीजिए : `A -(B uu C)`

Answer» `B uu C={x : x in B` या `x in C}={1, 2, 3, 4, 6, 8}`.
अब, `A-(B uu C)={x : x in A` और `x notin (B u C)}={5, 7}`.


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