AHS A Math Paper 1

AM-2018-AHS-EOY-P1 Anglican High School 2018 Sec 4 Prel AM Paper 1   NAME: _______________________ _____ ( ) CLASS: 4 ( ) 9o 11 September 2018 Tuesday 2 hours Additional Materials: 6 Writing Papers   READ THESE INSTRUCTIONS FIRST Write your name, index number and class on all the work you hand in. Write in dark blue or black pen on both sides of the writing paper provided. You may use a soft pencil for any diagrams or graphs. Do not use staples, paper clips, highlighters and glue or correction fluid. Answer all the questions. Write your answers on the separate Writing Paper provided. 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 approved scientific 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 and attach the question paper on top of the scripts. 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 Question Marks Question Marks Question Marks 1 7 13 2 8 Table of Penalties 3 9 4 10 Units 5 11 Presentation 6 12 Accuracy Parent’s Name & Signature: Date: Total: 80 This paper consists of 6 printed pages. S4 ANGLICAN HIGH SCHOOL SECONDARY FOUR PRELIMINARY EXAMINATIONS 2018 ADDITIONAL MATHEMATICS PAPER 1 [4047/01] [Turn over

AM-2018-AHS-EOY-P1 Anglican High School 2018 Sec 4 Prel AM Paper 1   Mathematical Formulae 1. ALGEBRA Quadratic Equation For the equation 02  cbxax , a acbbx 2 42  Binomial expansion nrrnnnnn bbar nbanbanaba                  ......21)( 221 , where n is a positive integer and ! )1)...(1( )!(! ! r rnnn rnr n r n       2. TRIGONOMETRY Identities 1cossin 22  AA AA 22 tan1sec  AAec 22 cot1cos  BABABA sincoscossin)sin(  BABABA sinsincoscos)cos(  BA BABA tantan1 tantan)tan(   AAA cossin22sin  AAAAA 2222 sin211cos2sincos2cos  A AA 2tan1 tan22tan   Formulae for ABC C c B b A a sinsinsin  Abccba cos2222  Area of Cab si