问题 填空题

已知命题p:∀x∈R,使得x2+(a-1)x+1≥0,则命题p的否定是______.

答案

∵命题p:∀x∈R,使得x2+(a-1)x+1≥0,

∴命题p的否定是“∃x∈R,使得x2+(a-1)x+1<0”

故答案为:∃x∈R,使得x2+(a-1)x+1<0.

判断题
单项选择题