A=(−∞,1] va B=(m,2]. Neu $m\geq 1thiA\cup B=(-\infty, 1]\cup (m,2]\ne (-\infty, 2].Neum\leq 1thiA\cup B=(-\infty, 2].Nhuvaym\leq 1$
A=(−∞,1] va B=(m,2]. Neu $m> 1thiA\cup B=(-\infty, 1]\cup (m,2]\ne (-\infty, 2].Neum\leq 1thiA\cup B=(-\infty, 2].Nhuvaym\leq 1$