设A={x|<0},B={x|x2+ax+b≤0},A∩B=, A∪B={x|-5<x≤2. 求

A={x<0},B={xx2ax+b≤0},AB

AB={x|-5<x≤2.

求实数ab的值.

答案

a=-3b=2


解析:

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