问题补充:
设a,b是实数,要使分式a*a-3ab+2b*b/a*a-b*b的等于零,a,b应满足什么样的条件
答案:
(a²-3ab+2b²)/(a²-b²)
=[(a-2b)(a-b)]/[(a-b)(a+b)]=0
a-2b=0 a=2b
a-b≠0 a≠b
======以下答案可供参考======
供参考答案1:
(a*a-3ab+2b*b)/(a*a-b*b)
=(a-b)(a-2b)/[(a-b)(a+b)]
=(a-2b)/(a+b)=0,
a,b应满足a=2b≠0.
时间:2024-09-23 23:13:41
设a,b是实数,要使分式a*a-3ab+2b*b/a*a-b*b的等于零,a,b应满足什么样的条件
(a²-3ab+2b²)/(a²-b²)
=[(a-2b)(a-b)]/[(a-b)(a+b)]=0
a-2b=0 a=2b
a-b≠0 a≠b
======以下答案可供参考======
供参考答案1:
(a*a-3ab+2b*b)/(a*a-b*b)
=(a-b)(a-2b)/[(a-b)(a+b)]
=(a-2b)/(a+b)=0,
a,b应满足a=2b≠0.
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