已知集合A={X|kπ+π/3〈=x〈kπ+π/2(k属于Z)},B={x|4-x^2>=0},求A∩B求详解!
问题描述:
已知集合A={X|kπ+π/3〈=x〈kπ+π/2(k属于Z)},B={x|4-x^2>=0},求A∩B
求详解!
答
B={x|4-x^2>=0}
-2