H2 Math Tue 7pm

By KS Teng

This page contains all questions and answers asked by students from this class. The most recent questions will be at the top.

MF26

Question 10 & 11

Question 10 & 11

10.
(i)

11.
(i)
Since P is on l, \vec{OP} = \begin{bmatrix} 1\\ 2\\ 3\end{bmatrix} + t \begin{bmatrix} -1\\ 1\\ 1\end{bmatrix} for some t
\vec{OP} perpendicular to l \Rightarrow \vec{OP} \bullet \begin{bmatrix} -1\\ 1\\ 1\end{bmatrix}
-(1-t)+2+t+3+t=0
t=-\frac{4}{3}
\vec{OP} = \begin{bmatrix} 1\\ 2\\ 3\end{bmatrix} -\frac{4}{3} \begin{bmatrix} -1\\ 1\\ 1\end{bmatrix} = ...

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