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Unformatted text preview: MATHEMATICS HIGHER LEVEL PAPER 2 Friday 7 May 2004 (morning) 3 hours M04/511/H(2) c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLME DU BI PROGRAMA DEL DIPLOMA DEL BI 224237 12 pages INSTRUCTIONS TO CANDIDATES y Do not open this examination paper until instructed to do so. y Answer all five questions from Section A and one question from Section B. y Unless otherwise stated in the question, all numerical answers must be given exactly or to three significant figures. y Write the make and model of your calculator in the appropriate box on your cover sheet e.g. Casio fx9750G , Sharp EL9600, Texas Instruments TI85. Please start each question on a new page. You are advised to show all working, where possible. Where an answer is wrong, some marks may be given for correct method, provided this is shown by written working. Solutions found from a graphic display calculator should be supported by suitable working, e.g. if graphs are used to find a solution, you should sketch these as part of your answer. SECTION A Answer all five questions from this section. 1. [Maximum mark: 12] [2 marks] (a) The point lies in the plane . The vector is P(1, 2,11) 1 3 4 + i j k perpendicular to . Find the Cartesian equation of . 1 1 (b) The plane has equation . 2 3 4 x y z + = (i) Show that the point P also lies in the plane . 2 [5 marks] (ii) Find a vector equation of the line of intersection of and . 1 2 [5 marks] (c) Find the acute angle between and . 1 2 2 M04/511/H(2) 224237 2. [Maximum mark: 14] (i) Jack and Jill play a game, by throwing a die in turn. If the die shows a 1, 2, 3 or 4, the player who threw the die wins the game. If the die shows a 5 or 6, the other player has the next throw. Jack plays first and the game continues until there is a winner. [1 mark] (a) Write down the probability that Jack wins on his first throw. [2 marks] (b) Calculate the probability that Jill wins on her first throw. [3 marks] (c) Calculate the probability that Jack wins the game. (ii) Let be the probability density function for a random variable X , where ( ) f x 2 , for 0 2 ( ) 0, otherwise. kx x f x = [2 marks] (a) Show that . 3 8 k = (b) Calculate (i) ; E( ) X [6 marks] (ii) the median of X . 3 M04/511/H(2) 224237 Turn over 3. [Maximum mark: 15] (i) A complex number z is such that . 3i z z = [2 marks] (a) Show that the imaginary part of z is . 3 2 (b) Let be the two possible values of z , such that . 1 2 and z z 3 z = (i) Sketch a diagram to show the points which represent in the complex plane, where is in the first 1 2 and z z 1 z quadrant....
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 Spring '10
 McGee

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