Cho A = ( - 3;5],B = ( - vô cùng;2]. Tìm A giao B, A hợp B, A trừ B, CRA
Giải thích
\(A \cap B = ( - 3;2],\)\(A \cup B = ( - \infty ;5]\)
\(A\backslash B = (2;5],{C_\mathbb{R}}A = ( - \infty ; - 3] \cup (5; + \infty )\)
\(A \cap B = ( - 3;2],\)\(A \cup B = ( - \infty ;5]\)
\(A\backslash B = (2;5],{C_\mathbb{R}}A = ( - \infty ; - 3] \cup (5; + \infty )\)