设P:实数x满足x^2-4ax+3a^20,若非p是非q的必要不充分条件,求a范围
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设P:实数x满足x^2-4ax+3a^20,若非p是非q的必要不充分条件,求a范围
设P:实数x满足x^2-4ax+3a^20,若非p是非q的必要不充分条件,求a范围
设P:实数x满足x^2-4ax+3a^20,若非p是非q的必要不充分条件,求a范围
x^2+2x-8>0 (x+4)(x-2)>0 x2
∴命题q:x2
x^2-4ax+3a^20 又由a<0 3ap
因此p必须是q的真子集.
又已知a<0
∴a
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