AHS 2025 S4 AM Prelim P2 MS

NAME: _______________________________ ( ) CLASS: 4 ( ) 9o ADDITIONAL MATHEMATICS 4049/02 Paper 2 MARKING SCHEME READ THESE INSTRUCTIONS FIRST Write your name, index number and class in the spaces at the top of this page. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, 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 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. 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 90. ---------------------------------------------------------------------------------------------------------------------- For Examiners’ Use Question Marks Question Marks 1 8 2 9 Units 3 10 Clarity / Logic 4 11 Precision / Accuracy 5 Total: 6 90 7 Parent’s Name & Signature: Date: This paper consists of 18 printed pages. S4 ANGLICAN HIGH SCHOOL SECONDARY FOUR PRELIMINARY EXAMINATIONS 2025

Mathematical Formulae 1. ALGEBRA Quadratic Equation For the equation , Binomial expansion , where n is a positive integer and 2. TRIGONOMETRY Identities Formulae for Area of ! "!" #" $++ = !" ! !! " #$ " !± != ( ) !" " ### ###!" ! !! ! ! " " !!! !#$ # # $ # $ # $ $ " !! !"# "# "#+= + + + + + +$% $% $%&' &' &' ( ) ( )( )! """ !# ## # ! !! ! "! " "!" " !! +"#==$% !&' !"#$$%& '' =+ !! !! !! "#$%&'( += !!"#$%" & "#'!!=+ !"!"!" !"#$%!$%!!"#&!"#' ±=± !"#$ % !"# !"# #&' #&'!" ! " ! "±= ! !"# !"#!"#$ % & !"# !"# !"!" !" ±±= ! !"# $ $!"# %&!!! !=!!!!! !!!! "#$!%%&'"!"#$&'"!&'" !=!=!= ! !! !"#$% "#$!!"#$ ! = !"#!! " # A B C !"#!"#!"# == !"##"A !"#$$$$ !+= !"#!"# $ %=!

3 © Anglican High School 2025 4049/02/Prelim/25 [Turn over 1 (a) Show that . [4] (a) M1 for using changing tan and cot M1 M1 A1 (b) Hence, solve the equation for 0 < x < p. [3] (b) M1 M1 A1 ! " #$% "&'# #$% !!! =" !! ! !! ! ! "#$%&'( ()* "HHHHHHH&', ,-* ,-* &', "HHHHHHH&', ,-* &', ,-* " &', ,-* &',HHHHHHH&', ,-* &', "( ) * .( ) * !( ) *! !! !! !! !! !! !! ! !! ! ! ! ! = " = " = " =÷ " =" = ! "#$% & %'( &!! =! ! " #$% & ! !#$% & " '$()*+$%,-. /0/123 & /0/1234 /0/1234 " /0/1234 3 /0/12 20"154 +/0254 +/056+4 +" 3 07 ! ! !" " " ! = = = =+ + + =

4 © Anglican High School 2025 4049/02/Prelim/25 [Turn over 2 The expression , wh