acuzenalol2920 acuzenalol2920 04-01-2024 Mathematics contestada For a given universe U, let A⊆U where A is finite if (a) B=A∪{x}, where x∈U−A ? (b) B=A∪{x,y}, where x,y∈U−A ? (c) B=A∪{x1,x2,…,xk}, where x1,x2,…,xk∈U−A ?
