已知实数a，b，c，d满足 a−2eab=2−cd =1，其中e是自然对数的底数，则（a﹣c）2+（b﹣d）2的最小值为_刷题宝

题干

已知实数a，b，c，d满足 −

a

2

e

a

b

=−

2

c

d

=1，其中e是自然对数的底数，则（a﹣c）²+（b﹣d）²的最小值为（）

A：4

B：8

C：12

D：18

上一题下一题 0.0难度选择题更新时间:2020-01-11 04:41:46

答案(点此获取答案解析）

B

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