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Vectors and matrices — Question 5

QCAA 2021, Paper 2 · 1 mark

Q5 · 2021 · Technology-activeSimple familiar1 mark

QUESTION 5

A vector normal to the plane that contains the vectors (130)\begin{pmatrix}1\\3\\0\end{pmatrix} and (102)\begin{pmatrix}1\\0\\2\end{pmatrix} is
(A)
6i^+2j^+3k^6\hat{\mathbf i}+2\hat{\mathbf j}+3\hat{\mathbf k}
(B)
6i^+2j^−3k^6\hat{\mathbf i}+2\hat{\mathbf j}-3\hat{\mathbf k}
(C)
6i^−2j^+3k^6\hat{\mathbf i}-2\hat{\mathbf j}+3\hat{\mathbf k}
(D)
6i^−2j^−3k^6\hat{\mathbf i}-2\hat{\mathbf j}-3\hat{\mathbf k}
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