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

Recall the

If the angle is obtuse , then $latex \mathrm{cos} \theta < 0$. Thus, $latex a \bullet b < 0$

Vectors Q7 [Homework]

(i)

Using ratio theorem,

Since is perpendicular to

(ii)

To be a parallelogram,

(iii)

Let

Since

— (1)

— (2)

Solving,

Vectors Q9 [Homework]

(i)

Normal of

(ii)

Let be the acute angle

(iii)

— (1)

— (2)

Using GC,

(iv)

Let be the normal of

Length of projection

(v)

Required distance

(vi)

Let normal of

If intersect at l,

lies on

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