Ordinary level 2025 North West regional mock additional mathematics guide
Ordinary level 2025 North West regional mock additional mathematics guide
| MARKING GUIDE ADD MATHS 0575 PAPER 1 AND 2 PAPER 2 SECTION A 1)i) 22π₯ – 5(2π₯) + 4 = 0 Let π¦ = 2π₯ π¦2 – 5π¦ + 4 = 0 7 3 1 3 b) Equation: 3π₯2 + 5π₯ – 1 = 0 M1M1A1 |
| 2) i) MATHEMATICS No of ways = 11! 2!2!2! = 4989600π€ππ¦π M1M1A1 ii)a) π(π₯) = (1 + 3π₯)-1 = 1 – 3π₯ + 9π₯2 M1M1A1 b) Expansion valid for -1 3 < π₯ < 1 3 M1A1 |
| 3)i)a) π12 = 15000 + 11π 15000 + 11π = 235000 π = 20000 M1M1A1 b) Total amount, π12 = 1500000πΉπΆπΉπ΄ M1A1 ii) 2 – β2 2 + 2β2 = (2 – β2)(2 – 2β2) (2 + 2β2)(2 – 2β2) = -2 + 3 2 β2 M1M1A1 |
| 4)i)a) Table 3marks divisible. b) π = 1 A1 ii)a) π-1 = 1 -7 (- -1 3 -12) |
π₯ = 2, π₯ = 0 M1A1M1A1
ii)a) πΌ + π½ = , πΌπ½ = A1
