已知实数,满足,则等于A.3         B.-3         C.1       D.-1

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问题详情:

 已知实数 已知实数,满足,则等于A.3         B.-3         C.1       D.-1, 已知实数,满足,则等于A.3         B.-3         C.1       D.-1 第2张满足 已知实数,满足,则等于A.3         B.-3         C.1       D.-1 第3张,则 已知实数,满足,则等于A.3         B.-3         C.1       D.-1 第4张等于

A.3          B.-3          C.1        D.-1

【回答】

A

知识点:实数

题型:选择题

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