若向量函数向量r(t)平行于某固定平面,则有( ) -题库考试答案搜索网

若向量函数向量r(t)平行于某固定平面,则有( )

单选题

2021-09-06 21:17

A、 (向量r′(t)₂向量r″(t)，向量r".(t))=0
B、 (向量r(t)₂向量r′(t)₂向量r″(t)）=0
C、 （向量r(t)₂向量r′(t)₂向量r".(t))=0
D、 （向量r(t)₂向量r".(t)₂向量r″(t)）=0

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正确答案

B

试题解析

标签：青书学堂平顶山学院数学与应用数学微分几何(专升本)

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