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CAPE Pure Mathematics Unit 2 · May/June 2015 · Paper 1

45 multiple-choice items from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

  1. Q11 mark · multiple choiceThe conjugate of the complex number 7 + \frac{1}{2}i is
  2. Q21 mark · multiple choiceThe complex number z = \sqrt{3} + i can be expressed as
  3. Q31 mark · multiple choiceGiven that \cos 2x = 1 - 2\sin^2 x, then \int_0^{\pi} \sin^2\left(\frac{x}{4}\right) dx is
  4. Q41 mark · multiple choiceOne square root of 3 - 4i is
  5. Q51 mark · multiple choiceThe complex number z = \frac{1}{1-i} can be represented on an Argand diagram as
  6. Q61 mark · multiple choiceIf f(x) = \ln 2x, then f'(x) =
  7. Q71 mark · multiple choiceThe equation e^x - x^4 = 0 has a root between
  8. Q81 mark · multiple choiceThe number of bacteria present in a culture is modelled by y = y_0 e^{kt}, where k > 0, y is the population after t hours, and y_0 is the initial population. The rate of growth, c, when t = 5 is given by
  9. Q91 mark · multiple choice\frac{d}{dx}(\ln x)^3 =
  10. Q101 mark · multiple choiceGiven that a, b, c and k are constants, then \int \frac{3}{x^2(x - 1)} dx can be expressed as
  11. Q111 mark · multiple choiceThe integral of \frac{1}{1 - \sin^2 x} with respect to x is
  12. Q121 mark · multiple choiceThe partial fractions of \frac{x + 3}{(2x + 5)(x - 1)^2} may be expressed in the form
  13. Q131 mark · multiple choiceA curve is given parametrically by the equations x = t^2 - 2t, y = t^2 + 2t. The simplest expression for the gradient of the tangent in terms of t is
  14. Q141 mark · multiple choice\int \frac{dx}{\sqrt{1 - 9x^2}} =
  15. Q151 mark · multiple choiceThe argument of the complex number z = -\frac{1}{2} + i\frac{\sqrt{3}}{2} is
  16. Q161 mark · multiple choiceFor -1 < 2n < 1, \sum_{r=0}^{\infty} (2n)^r =
  17. Q171 mark · multiple choiceIf the terms of the sequence u_1, u_2, u_3, \dots, u_n, \dots satisfy the recurrence relation u_{n+1} = u_n + 3, n \ge 1, then the n^{\text{th}} term may be expressed as
  18. Q181 mark · multiple choiceThe 5^{\text{th}} term in the sequence that is defined by the relation u_n = (-1)^{n+1}\frac{n}{3n - 1}, n \ge 1, is
  19. Q191 mark · multiple choiceWhich of the following sequences, \{u_n\}, converges?
  20. Q201 mark · multiple choiceWhich of the following series are arithmetic series? \begin{align*} \text{I.} & \quad \sum_{r=1}^n (7 + 3r) \\ \text{II.} & \quad \sum_{r=1}^n 2(3^r) \\ \text{III.} & \quad \sum_{r=1}^n \log_{10}(r + 1) \\ \text{IV.} &…
  21. Q211 mark · multiple choiceThe sum to infinity of a geometric series is \frac{1}{1 - 2x}. The range of x is
  22. Q221 mark · multiple choiceLet a_n and S_n denote respectively, the value of the n^{\text{th}} term and the n^{\text{th}} partial sum of a series. The value of S_{n+2} - S_n when calculated on the series is
  23. Q231 mark · multiple choiceThe binomial coefficient \binom{n}{2} is equivalent to
  24. Q241 mark · multiple choiceGiven that S_n = \sum_{i=1}^n \left(\frac{1}{i} - \frac{1}{i+1}\right), \lim_{n\to\infty} S_n is
  25. Q251 mark · multiple choiceThe value of the term that is independent of x in the binomial expansion of \left(x^2 + \frac{1}{x}\right)^{12} is
  26. Q261 mark · multiple choiceGiven that the coefficient of the term in b^3 in the binomial expansion of (a + b)^5 is 40, then a =
  27. Q271 mark · multiple choiceIf \sum_{n=2}^\infty 2^{-n} = a, then a is
  28. Q281 mark · multiple choiceThe Maclaurin series for \sin x, up to the term in x^3, is
  29. Q291 mark · multiple choiceLet f be a continuous function with f(0) = 1 and f(0.8) = -0.76. The first approximation to the root in [0, 0.8], to three decimal places, using linear interpolation is
  30. Q301 mark · multiple choiceGiven that the n^{\text{th}} approximation of the root of the equation x^5 = x^3 + 25 based on the Newton-Raphson method is x_n, then x_{n+1} may be expressed as
  31. Q311 mark · multiple choiceIn how many ways can the letters ABCDE be arranged so that the A and B are always together?
  32. Q321 mark · multiple choiceThe number of distinct permutations of the letters of the word POSSIBILITY is
  33. Q331 mark · multiple choiceA relay team of five teachers is to be chosen from a group of 15 teachers. In how many ways could this relay team be chosen?
  34. Q341 mark · multiple choiceX and Y are mutually exclusive events. If P(X) = \frac{1}{4} and P(Y) = \frac{1}{5}, then P(X \cup Y) =
  35. Q351 mark · multiple choiceThe matrix A is a 3 \times 3 matrix with determinant 14. If the matrix of cofactors of A is \begin{pmatrix} 4 & -14 & -2 \\ 3 & -7 & -5 \\ 1 & 7 & 3 \end{pmatrix}, then A^{-1} =
  36. Q361 mark · multiple choiceThe number of possible values of x which satisfy the system of simultaneous equations, \begin{align*} 2x + 3y + 2z &= -5 \\ 4x + 6y + 4z &= -10 \\ 6x + 9y + 6z &= -16 \end{align*} is
  37. Q371 mark · multiple choiceIf M = \begin{pmatrix} 1 & 1 & 4 \\ 3 & 2 & -1 \\ 6 & 0 & 5 \end{pmatrix}, then the cofactor of the element 3 in M above may be written as
  38. Q381 mark · multiple choiceIf P = \begin{pmatrix} 1 & -2 & 0 \\ 3 & 1 & 5 \\ -1 & 2 & 3 \end{pmatrix} and Q = \begin{pmatrix} -7 & 6 & -10 \\ -14 & 3 & -5 \\ 7 & 0 & 7 \end{pmatrix} then…
  39. Q391 mark · multiple choiceThe letters of the word I R R E G U L A R are to be arranged in a line. The number of possible arrangements in which the 3 Rs are NOT together is
  40. Q401 mark · multiple choiceTwo coins and a die with faces numbered 1 to 6 are thrown together once. Assuming that the die and coins are fair, the probability of obtaining 2 heads and a number less than 4 is
  41. Q411 mark · multiple choiceThe determinant of the matrix M = \begin{pmatrix} 3 & -1 & 5 \\ 2 & 3 & -2 \\ 0 & 5 & 4 \end{pmatrix} is
  42. Q421 mark · multiple choiceIf the auxiliary equation for a homogeneous second order differential equation with real, constant coefficients is given by \lambda^2 + 6\lambda + 50 = 0, then the general solution of the differential equation may be…
  43. Q431 mark · multiple choiceThe general solution of the differential equation (x - 2)\frac{dy}{dx} = y is
  44. Q441 mark · multiple choiceGiven that y = \frac{\pi}{4} and x = \frac{1}{2}, then the particular solution of \frac{dy}{dx} = 2x\cos^2 y is
  45. Q451 mark · multiple choiceThe general solution of the differential equation \frac{dy}{dx} = \frac{y}{x} is

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