设集合A={x^2-3x-10>=0},B={x|2m-1>x
问题描述:
设集合A={x^2-3x-10>=0},B={x|2m-1>x
答
∵A={x^2-3x-10>=0}
∴x≥5或x≤-2
∴A=(-无穷,-2]∪[5,+无穷)
∵B={x|2m-1>x