paper reference(s) 7362/01 london examinations gce level... · 5/13/2010 · the marks for...
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Examiner’s use only
Team Leader’s use only
Surname Initial(s)
Signature
Centre
No.
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Candidate
No.
Question Leave Number Blank
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Paper Reference(s)
7362/01
London Examinations GCEPure Mathematics
Alternative Ordinary Level
Paper 1
Thursday 13 May 2010 – Afternoon
Time: 2 hours
Materials required for examination Items included with question papers
Nil Nil
Candidates are expected to have an electronic calculator when answering this paper.
Instructions to Candidates
In the boxes above, write your centre number, candidate number, your surname, initials and signature. Check that you have the correct question paper.You must write your answer to each question in the space following the question.If you need more space to complete your answer to any question, use additional answer sheets.
Information for Candidates
Full marks may be obtained for answers to ALL questions.The marks for individual questions and the parts of questions are shown in round brackets: e.g. (2).There are 10 questions in this question paper. The total mark for this paper is 100.There are 28 pages in this question paper. Any blank pages are indicated.
Advice to Candidates
Write your answers neatly and legibly.
Paper Reference
7 3 6 2 0 1
This publication may be reproduced only in accordance with
Edexcel Limited copyright policy.
©2010 Edexcel Limited.
Printer’s Log. No.
N35379AW850/U7362/57570 4/4/6/3
*N35379A0128*
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1. The grid opposite shows the graph of y = 3x – 4 + 6
2x for 0.74 x 4
The line with equation 5 4y x= − intersects the curve with equation 2
63 4y x
x= − + at the
point P.
(a) Using algebra, show that the x-coordinate of P satisfies 3 3x =(3)
(b) By drawing a suitable straight line on the grid, obtain an estimate, to 1 decimal place,
for the value of
(2)
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Q1
(Total 5 marks)
1
1 2 3 4O x
y
2
3
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2. A particle P is moving in a straight line.
At time t seconds, 0t , the velocity of P is v m/s, where v = 4 + 6t – t 2.
(a) Find an expression, in terms of t, for the acceleration of P at time t.
(2)
(b) Find the maximum velocity of P.
(2)
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(Total 4 marks)
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3. Solve the equations
x y
y xy x
− =
+ + =
2 3
2 2 12 2
(6)
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(Total 6 marks)
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4. The lengths of the sides of a triangle are 5 cm, 6 cm and 8 cm.
(a) Find, in degrees to one decimal place, the size of the smallest angle of the triangle.
(4)
(b) Find, to the nearest cm2, the area of the triangle.
(3)
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Question 4 continued
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(Total 7 marks)
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5. The sum, Sn, of the first n terms of an arithmetic series is given by ( )2 1nS n n= + .
For this series,
(a) prove that the first term is 3,
(2)
(b) find the common difference,
(3)
(c) find the value of the 25th term.
(2)
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Question 5 continued
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(Total 7 marks)
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6.y
5y =
O
x
Figure 1
Figure 1 shows the curve with equation 29y x= − and the line 5y =
The shaded region is rotated through 360° about the x-axis.
Find, to 3 significant figures, the volume of the solid generated.
(11)
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Question 6 continued
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(Total 11 marks)
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7. (a) Expand ( )1221 3x
−+ in ascending powers of x up to and including the term in x6,
simplifying each term as far as possible.
(3)
(b) State the range of values of x for which your expansion is valid.
(1)
f (x) =
2
1 31
2
2
2
+
+
kx
x( ), k ≠ 0
(c) Obtain a series expansion for ( )f x in ascending powers of x up to and including the
term in x6.
(3)
Given that the coefficient of x6 in the series expansion of ( )f x is zero,
(d) show that 5k =(2)
(e) Hence use your series expansion from part (c) to obtain an estimate, to 4 decimal
places, of
( )0.3
0f dx x∫
(4)
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Question 7 continued
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Question 7 continued
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Question 7 continued
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(Total 13 marks)
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8. (a) Solve the equation 5log 625 x=(2)
(b) Solve the equation log3 5 3 5y +( ) =(2)
(c) (i) Factorise 5 ln 3ln 10 6x x x x+ − −
(ii) Hence find the exact solution of the equation
5 ln 3ln 10 6 0x x x x+ − − =
(5)
Given that p q≠ , solve the simultaneous equations
(d) log 3log 4
81
p qq p
pq
+ =
=
(5)
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Question 8 continued
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Question 8 continued
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Question 8 continued
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(Total 14 marks)
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9.
y
OQ
S
R
C
P x
Figure 2
f (x x ax bx d a b d) , , ,= + + + ∈3 2 Z
Figure 2 shows the curve C with equation ( )fy x= .
The curve C crosses the x-axis at the points P, Q and R.
The x-coordinates of P, Q and R are 3, 1− − and 2 respectively.
The point S on C has x-coordinate 2−
(a) Find the value of a, the value of b and the value of d.
(4)
The line l is the tangent to C at S.
(b) Find an equation for l giving your answer in the form y px q= + .
(5)
(c) Hence show that l passes through R.
(1)
(d) Find the area of the region enclosed by C and l.
(5)
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Question 9 continued
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Question 9 continued
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Question 9 continued
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(Total 15 marks)
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10. The points P, Q and R have coordinates (1, 3), (4, 5) and (6, 2) respectively.
(a) Find the gradient of (i) PQ, (ii) QR.
(3)
(b) Show, by calculation, that PQ is perpendicular to QR.
(2)
(c) Find the exact length of PQ.
(2)
The line l is the perpendicular bisector of PR.
(d) Find an equation for l.
(4)
(e) Show that Q lies on l.
(1)
The line l meets the x-axis at the point S.
(f) Show that PQRS is a square.
(4)
(g) Find the area of PQRΔ .
(2)
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Question 10 continued
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Question 10 continued
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Question 10 continued
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TOTAL FOR PAPER: 100 MARKS
END
Q10
(Total 18 marks)
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