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题目:
单选题
已知
=(3,5,-2),
0=(2,1,4),要使λ
+μ
与
=(0,0,1)垂直,则常数λ与μ应满足关系()。
A
λ0=2μ
B
λ=μ
C
μ0=2λ
D
λ=-μ
答案:
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