Vectors
177.
In the diagram, X and Y are midpoints of AC and BC respectively.
and .
(a) In terms of p and/or q, find:
(i) ,
and .
(i) ,
(a)(i) ......................... [1]
(ii)
.
(a)(ii) ......................... [1]
(b) Show that
and
are parallel.
(b) ......................... [2]
Paper 2
178.
The diagram shows triangle APQ.
and and .
Find
in terms of p and q, giving your answer in its simplest form.
and and .
AB = ......................... [3]
Paper 2
179.
The diagram shows DEFNM and its image ABCNM after a reflection along the line NM.
AB = BC = CN = AM and .
Expressing your answer, in terms of a, b and/or c, in simplest form, find:
(a) ,
AB = BC = CN = AM and .
(a) ,
(a) ......................... [1]
(b)
,
(b) ......................... [1]
(c)
.
(c) ......................... [1]
Paper 2
62.
In the diagram,
=
and
=
.
R is the point on QS such that = .
U is the point on RP such that = .
T is the midpoint of SP.
(a) Express, as simply as possible, in terms of a and/or b:
(i) ,
R is the point on QS such that = .
U is the point on RP such that = .
T is the midpoint of SP.
(i) ,
......................... [1]
(ii)
,
......................... [1]
(iii)
,
......................... [2]
(iv)
.
......................... [1]
(b) Write down two facts about the points T, U and Q.
1. ......................... 2. ......................... [2]
Paper 4
124.
(a) The magnitude of
is 10 units.
One of the entries of the vector is 8.
Point A is located North West of B.
Write as a column vector.
One of the entries of the vector is 8.
Point A is located North West of B.
Write as a column vector.
=
(
.........................
.........................
)
[2]
Paper 4
127.
In the diagram,
=
,
=
,
=
and
=
.
(a) Express, as simply as possible, in terms of a, b and/or k:
(i) ,
(i) ,
= .........................
[1]
(ii)
,
= .........................
[1]
(iii)
.
= .........................
[2]
(b) Given that OX is parallel to AY, find the value of k.
k = ......................... [3]
Paper 4
128.
In the diagram, O is the origin,
=
,
=
,
and ON : NB = 1 : 2.
M is the midpoint of AB.
Express in terms of a and/or b, in its simplest form:
(a) ,
M is the midpoint of AB.
(a) ,
= .........................
[1]
(b) The position vector of M,
= .........................
[2]
(c)
.
= .........................
[3]
Paper 4
130.
In the diagram,
=
,
=
,
=
and
=
.
(a) Express
in terms of a and/or b.
= .........................
[1]
(b)
in terms of k, a and/or b.
= .........................
[1]
(c) Find the ratio of AP to PB.
AP : PB = ......................... [3]
(d) Given that OP is parallel to BQ, find the value of k.
k = ......................... [3]
Paper 4
133.
In the diagram,
=
,
=
and
=
.
Q lies on PR such that PQ : QR = 2 : 3.
(a) Find the following in terms of a and b, giving each answer in its simplest form.
(i) ,
Q lies on PR such that PQ : QR = 2 : 3.
(i) ,
= .........................
[1]
(ii)
.
= .........................
[2]
(b) Find
,
in terms of a and b and hence show that
=
.
= .........................
[3]
Paper 4