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

Vectors Q7 [Homework]

(i)

Using ratio theorem,

Since is perpendicular to

(ii)

To be a parallelogram,

(iii)

Let

Since

— (1)

— (2)

Solving,

Vectors Q8 [Homework]

(i)

(ii)

Let R be the top of the vertical pillar,

Since R is collinear with A and C, R is the intersection of line AC and QR.

, and the height is 9m.

(iii)

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,n lies on