Ujian Matematik Tambahan

Sekolah Menengah Sains Muzaffar Syah Melaka 75450 Air Keroh Melaka Ujian 2 2007 Additional Mathematics breed 4 Time 75 Minuets INFORMATION FOR CANDIDATES 1 This question brochure consists of three parts, subsection A and Section B. and Section C coiffure All Question in Section A and B and 2 Question of section C 2 Give only virtuoso serve/ solution to each question. 3 Show your working . It whitethorn help you to get attach. 4 The figures/diagrams inclined in a hassle in this question booklet would provide useful information to elaborate the problem. However, it might not be drawn to scale. 5 Write the reception in the dish sheets provided. All solution methods must be clear shown. You may loose marks if important working steps are not properly shown. 7 The marks for each question or part-question are shown in brackets. 8 You may use a non- programmable scientific calculator. The following formulae may be helpful in answering the questions. The symbols given are the o nes commonly used . 1 x = ?x N 6 Arc continuance, s = r ? 7. Area of orbit , A= 1 2 r ? 2 2 x = ? = ? fx ? f ? (x ? x ) N 2 8. = y=uv, 3 ?x N 2 dy dv du =u +v dx dx dx ?x 2 9 2 4 ?= ? f ( x ? x) ? f = ? fx ? f 2 ?x 2 du dv v ? u u y = , dx = dx 2 dx , v dy v dy dy du = ? dx du dx 10 5 ?1 ? ?2N? F? M = L+? C ? fm ? ? ? ? ? Section A 1 serve all questions The mean of x+ 3, 2x 5, x + 7, x and 3x + 7, is 12 . come up (a) the value of x (b) median 4 marks practice (a) (b) 2. A set of examination marks a1 , a2, a 3, a 4, a5, a6, has a mean of 5 and standard deviation of 1. 5 play (i) the sum of the marks, ? a , (ii) the sum of the squares of the marks, ?a 2 3 marks Answer 3. The mean of a set of four positive integers is 6. When a number y is taken out from the set, the mean becomes 5. Find the value of y. 3 marks Answer 4. The mean of the set of meter 2. 5, 3. 6, 4. 3, 5. 8, x is 4. . Find the standard deviation of the set of data. Give your answer correct to three dec imal places 3 marks Answer.. ________________________________________________________________________ 5 Marks come in of student 1 -20 2 21 40 1 41- 60 5 61 80 14 81 100 8 put back above shows the marks obtained by a group of students I a monthly test. Find the standard deviation of the marks. Give your answer correct to two decimal places. 4 marks Answer __________________________________________________________________________ _ 6 (a) Convert 231 o 11 to radian (b) Convert 1. 455 to degree and legal proceeding 2 marks Answer 7 plot 1 shows a sector AOB with means O . A 5c m O 0. 5 rad 5c m B DIAGRAM 1 Find the area of the shaded component 4 marks Answer 8 r A O 63 o B Diagram 2 shows a peck with centre O. Given that the length of the major arc AB is 62. 21 cm, see the length of the radius, r , in cm. 3 marks DIAGRAM 2 Answer 9 Diagram 3 shows two arcs, AD and BC, for two circle with centre O and radius OA and OB separately. 12 cm ? 10 cm 10 cm DIAGRAM 3 Giv en that the length of arc BC is 12 cm , OD is 10 cm and OD DC = 5 2 Find , a) ? , in radian b) the are of the shaded region ABCD. 4 marks Answer __________________________________________________________________________ _ Section B Answer two question only 20 marks 1 Table 1 shows the marks of 80 students in an examination. Marks No of Students 50 59 8 60 69 25 TABLE 1 (a) Calculate the mean marks of the student. 3 marks 70 79 22 80 89 18 90 99 7 (b) Draw a histogram and estimate its mode 4 marks (c) Without design an ogive, calculate the median marks of the students 3 marks 2 Diagram 4 shows sector AOB and sector OED with centre O and E respectively . OCE is a right angle triangle. A cm C BO D ? RAJAH 6 E Given that ? AOB is 500 , OA = 10 cm , OE = 8 cm and OB BC = 2 1. Calculate (a) (b) (c) ? and radian, 2 marks perimeter of the shaded region in cm, 4 marks area of the shaded region in cm2. 4 marks 3 a) Find the value of 4 3 i) limit x ? 3x + 2 x x4 x 2 ? 64 ii ) limit n 8 x ? 8 3 marks b) Find dy of y = 32 by using first principle dx 2 marks c) Differentiate the following with respect to x 1 i) y = x + ? 5 ii) y = 23 ( 3x -5)4 x 128 d) Given that f(x) = 2x 3 find f ? (2) x 3 marks 2 marks END OF QUESTION PAPER Prepared By .. Pn Saripah Ahmad Approved by,