7) Prove that xyz + (x y)(xz) 8) Express the following function in minterm form without...

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7) Prove that xyz + (x y)(xz) 8) Express the following function in minterm form without first constructing a truth table: f(x, y, z) = (x + y)(x + Z) 9) Express the following function in maxterm form without first constructing a truth table: f(x, y, z) = (y + z') (xy' + z) 7) Prove that xyz + (x y)(xz) 8) Express the following function in minterm form without first constructing a truth table: f(x, y, z) = (x + y)(x + Z) 9) Express the following function in maxterm form without first constructing a truth table: f(x, y, z) = (y + z') (xy' + z)