H2 Math Tue 7pm

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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