1.

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

Answer» `A n C={x : x in A` और `x in C}={1, 3}`.
`:. (A nn C) uu C ={x : x in A nn C` या `x in C}={1, 2, 3, 4}`.


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