已知全集U=R,集合A={x|x^2-3x+2>0},B={||x-2|
问题描述:
已知全集U=R,集合A={x|x^2-3x+2>0},B={||x-2|
数学人气:875 ℃时间:2019-11-17 22:47:35
优质解答
A={x丨(2x-3)/(x+5)≤0},
={x | -5 B={x丨x^2-3x+2<0}
={x| (x-1)(x-2) = {x| 1 A∪B ={x | -5 = { x|-5 (CuA)∪B ={ x| x≤-5 or x> 3/2 } ∪ {x| 1 ={x| x≤-5 or x> 1 } #
={x | -5
={x| (x-1)(x-2) = {x| 1
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答
A={x丨(2x-3)/(x+5)≤0},
={x | -5
={x| (x-1)(x-2) = {x| 1