题目
单项选择题
Determine the result of the cross product of u=(1,0,0) and v=(0,1,0).(K:1)
选项
A.a. (1,1,0)
B.b. (0,1,1)
C.c. (1,0,1)
D.d. (0,0,1)
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标准答案
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思路分析
We’re asked to determine the cross product u × v for u = (1, 0, 0) and v = (0, 1, 0).
First, compute using the standard determinant form: u × v = det |i j k; 1 0 0; 0 1 0|. Expanding, we get i*(0*0 − 0*1) − j*(1*0 − 0*0) + k*(1*1 − 0*0) = 0i − 0j + 1k = (0, 0, 1).
Now evaluate each option to see whether it matches the computed result ......Login to view full explanation登录即可查看完整答案
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