Question

U=R,集合A={x/x＜0或x＞2} B={x/-1＜x＜3} c={x/3x-1＞a},求B交C

Answer 1

请问,C是指补集吗,是的话,答案如下

(1) CA={X>1} CB={X=2}

(2) {x|x1}

(3) {x|x>=2}

(4) (A∪B)={x|x=2}

(A∩B)={x|0