3|a|/[a(a-3)]=3/(3-a)=-3/(a-3),
∴|a|=-a,
a<0.
若分子3倍a的絕對(duì)值/a平方-3a=3/3-a成立,則a的取值范圍
若分子3倍a的絕對(duì)值/a平方-3a=3/3-a成立,則a的取值范圍
數(shù)學(xué)人氣:306 ℃時(shí)間:2020-06-15 01:44:46
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