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Oxford Cambridge and RSA Examinations GCE Further Mathematics B MEIY435/01: Extra pure A Level Question paper with marking scheme (merged)$6.19
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Oxford Cambridge and RSA
Examinations GCE Further
Mathematics B MEIY435/01: Extra
pure
A Level
Question paper with marking scheme
(merged)
, Oxford Cambridge and RSA
Friday 23 June 2023 – Afternoon
A Level Further Mathematics B (MEI)
Y435/01 Extra Pure
Time allowed: 1 hour 15 minutes
* 9 9 7 3 2 3 3 4 6 0 *
You must have:
• the Printed Answer Booklet
QP
• the Formulae Booklet for Further Mathematics B
(MEI)
• a scientific or graphical calculator
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided in the Printed Answer
Booklet. If you need extra space use the lined pages at the end of the Printed Answer
Booklet. The question numbers must be clearly shown.
• Fill in the boxes on the front of the Printed Answer Booklet.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
• Give your final answers to a degree of accuracy that is appropriate to the context.
• Do not send this Question Paper for marking. Keep it in the centre or recycle it.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• This document has 4 pages.
ADVICE
• Read each question carefully before you start your answer.
1 A surface is defined in 3-D by z = 3x 3 + 6xy + y 2 .
Determine the coordinates of any stationary points on the surface. [7]
2 A sequence is defined by the recurrence relation 4t n + 1 - t n = 15n + 17 for n H 1, with t 1 = 2 .
(a) Solve the recurrence relation to find the particular solution for t n . [7]
1
Another sequence is defined by the recurrence relation (n + 1) u n + 1 - u n2 = 2n - 2 for n H 1,
with u 1 = 2 . n
(b) (i) Explain why the recurrence relation for u n cannot be solved using standard techniques
for non-homogeneous first order recurrence relations. [1]
b
(ii) Verify that the particular solution to this recurrence relation is given by u n = an +
n
where a and b are constants whose values are to be determined. [5]
tn
A third sequence is defined by vn = for n H 1.
un
(c) Determine nlim v .
"3 n
[2]
3 A surface, S, is defined by g (x, y, z) = 0 where g (x, y, z) = 2x 3 - x 2 y + 2xy 2 + 27z . The normal to
S at the point a1, 1, - 19k and the tangent plane to S at the point (3, 3, - 3) intersect at P.
4 The set G is given by G = {M: M is a real 2 # 2 matrix and det M = 1}.
(a) Show that G forms a group under matrix multiplication, #. You may assume that matrix
multiplication is associative. [5]
J1 0N
(b) The matrix A n is defined by A n = KK O for any integer n. The set S is defined by
n 1O
L P
S = {A n : n ! Z, n H 0}.
(i) Determine whether S is closed under #. [2]
(ii) Determine whether S is a subgroup of (G, #). [2]
(c) (i) Find a subgroup of (G, #) of order 2. [2]
(ii) By considering the inverse of the non-identity element in any such subgroup, or
otherwise, show that this is the only subgroup of (G, #) of order 2. [2]
The set of all real 2 # 2 matrices is denoted by H.
(d) With the help of an example, explain why (H, #) is not a group. [2]
Ja 0N
5 The matrix P is given by P = KK O where a is a constant and a ! 3.
2 3O
L P
(a) Given that the acute angle between the directions of the eigenvectors of P is 14 r radians,
determine the possible values of a. [8]
(b) You are given instead that P satisfies the matrix equation I = P 2 + r P for some rational
number r.
(i) Use the Cayley-Hamilton theorem to determine the value of a and the corresponding
value of r. [4]
(ii) Hence show that P 4 = sI + t P where s and t are rational numbers to be determined.
You should not calculate P 4 . [3]
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