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This document consists of 16 printed pages. DC (NH/JG) 50034/5 UCLES 2012 Turn over * 0 8 3 5 0 5 8 0 8 4 * ADDITIONAL MATHEMATICS 0606/11 Paper 1 October/November 2012 2 hours Candidates answer on the Question Paper. Additional Materials: Electronic calculator. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams or graphs. Do not use staples, paper clips, highlighters, glue or correction fluid. Answer all the questions. Give non-exact numerical answers correct to 3 significant figures, or 1 decimal place in the case of angles in degrees, unless a different level of accuracy is specified in the question. The use of an electronic calculator is expected, where appropriate. You are reminded of the need for clear presentation in your answers. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets at the end of each question or part question. The total number of marks for this paper is 80. For Examiners Use 1 2 3 4 5 6 7 8 9 10 11 12 Total UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education 2 UCLES 20120606/11/O/N/12 For Examiners Use Mathematical Formulae 1. ALGEBRA Quadratic Equation For the equation ax2 + bx + c = 0, x bbac a = 2 4 2 Binomial Theorem (a + b)n = an + (n 1)a n1 b + (n 2)a n2 b2 + + (n r)a nr br + + bn, where n is a positive integer and ( n r) = n! (n r)!r! 2. TRIGONOMETRY Identities sin2 A + cos2 A = 1 sec2 A = 1 + tan2 A cosec2 A = 1 + cot2 A Formulae for ABC a sin A = b sin B = c sin C a2 = b2 + c2 2bc cos A = 1 2 bc sin A 3 Turn over UCLES 20120606/11/O/N/12 For Examiners Use 1 (i) Sketch the graph of y = |3 + 5x|, showing the coordinates of the points where your graph meets the coordinate axes. 2 (ii) Solve the equation |3 + 5x| = 2. 2 2 Find the values of k for which the line y = k 6x is a tangent to the curve y = x(2x + k). 4 4 UCLES 20120606/11/O/N/12 For Examiners Use 3 Given that p = logq 32, express, in terms of p, (i) logq 4, 2 (ii) logq 16q. 2 4 Using the substitution u = 5x, or otherwise, solve 52x+1 = 7(5x) 2. 5 5 Turn over UCLES 20120606/11/O/N/12 For Examiners Use 5 Given that y = x2 cos 4x , find (i) dy dx , 3 (ii) the approximate change in y when x increases from 4 to 4 + p, where p is small. 2 6 UCLES 20120606/11/O/N/12 For Examiners Use 6 (i) Find the first 3 terms, in descending powers of x, in the expansion of ?x + 2 x2? 6 . 3 (ii) Hence find the term independent of x in the expansion of ?2 4 x3? ?x + 2 x2? 6 . 2 7 Turn over UCLES 20120606/11/O/N/12 For Examiners Use 7 Do not use a calculator in any part of this question. (a) (i) Show that 3 5 2 2 is a square root of 53 12 10. 1 (ii) State the other square root of 53 12 10. 1 (b) Express 6 3 + 7 2 4 3 + 5 2 in the form a + b 6, where a and b are integers to be found. 4 8 UCLES 20120606/11/O/N/12 For Examiners Use 8 The points A(3, 6), B(5, 2) and C lie on a straight line such that B is the mid-point of AC. (i) Find the coordinates of C. 2 The point D lies on the y-axis and the line CD is perpendicular to AC. (ii) Find the area of the triangle ACD. 5 9 Turn over UCLES 20120606/11/O/N/12 For Examiners Use 9 A function g is such that g(x) = 1 2x 1 for 1 ? x ? 3. (i) Find the range of g. 1 (ii) Find g1(x). 2 (iii) Write down the domain of g1(x). 1 (iv) Solve g2(x) = 3. 3 10 UCLES 20120606/11/O/N/12 For Examiners Use 10 The table shows values of the variables x and y. x1030456080 y11.21619.522.424.7 (i) Using the graph paper below, plot a suitable straight line graph to show that, for 10 ? x ? 80, y = A sin x + B, where A and B are positive constants. 4 11 Turn over UCLES 20120606/11/O/N/12 For Examiners Use (ii) Use your graph to find the value of A and of B. 3 (iii) Estimate the value of y when x = 50. 2 (iv) Estimate the value of x when y = 12. 2 12 UCLES 20120606/11/O/N/12 For Examiners Use 11 (a) Solve cosec ?2x 3? = 2 for 0 x radians. 4 (b) (i) Given that 5(cos y + sin y)(2 cos y sin y) = 7, show that 12 tan2 y 5 tan y 3 = 0. 4 13 Turn over UCLES 20120606/11/O/N/12 For Examiners Use (ii) Hence solve 5(cos y + sin y)(2 cos y sin y) = 7 for 0 x 180. 3 14 UCLES 20120606/11/O/N/12 For Examiners Use 12 Answer only one of the following two alternatives. EITHER y y = (12 6x)(1 + x)2 x AO C B The diagram shows part of the graph of y = (12 6x)(1 + x)2, which meets the x-axis at the points A and B. The point C is the maximum point of the curve. (i) Find the coordinates of each of A, B and C. 6 (ii) Find the area of the shaded region. 5 OR y x A O B The diagram shows part of a curve such that dy dx = 3x 2 6x 9. Points A and B are stationary points of the curve and lines from A and B are drawn perpendicular to the x-axis. Given that the curve passes through the point (0, 30), find (i) the equation of the curve, 4 (ii) the x-coordinate of A and of B, 3 (iii) the area of the shaded region. 4 15 Turn over UCLES 20120606/11/O/N/12 For Examiners Use Start your answer to Question 12 here. Indicate which question you are answering. EITHER OR . . . . . . . . . . . . . . . . . . . . . . . 16 UCLES 20120606/11/O/N/12 For Examiners Use Continue your answer here if necessary. . . . . . . . . . . . . . . . . . . . . . . . . Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amend
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