Hits: 205

Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2007 | Oct-Nov | (P2-9709/02) | Q#3

Hits: 205       Question Solve the inequality . Solution SOLVING INEQUALITY: PIECEWISE Let  and , then; We consider two separate cases. When When We have the inequality; We have to consider two separate cases; When When Therefore the inequality will hold for ; Hence; SOLVING INEQUALITY: ALGEBRAICALLY Let, . Since given equation/inequality is […]

Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 2 (P2-9709/02) | Year 2007 | May-Jun | (P2-9709/02) | Q#1

Hits: 164     Question Solve the inequality . Solution SOLVING INEQUALITY: PIECEWISE Let, . We can write it as; We have to consider both moduli separately and it leads to following cases; When If then above four intervals translate to following with their corresponding inequality; When When When If then above four intervals translate […]

Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01) | Year 2007 | January | Q#10

Hits: 34   Question a.   On the same axes sketch the graphs of the curves with equations i.       y=x2(x –2), ii.     y=x(6 –x), and indicate on your sketches the coordinates of all the points where the curves  cross the x-axis. b.   Use algebra to find the coordinates of the points where the graphs intersect. Solution a.     […]

Past Papers’ Solutions | Assessment & Qualification Alliance (AQA) | AS & A level | Mathematics 6360 | Pure Core 1 (6360-MPC1) | Year 2007 | June | Q#6

Hits: 71   Question a.   The polynomial f(x) is given by  .                                                i.    Use the Factor Theorem to show that (x-1) is a factor of f(x).                                               ii.    Express f(x) in the form  , where p and q are integers.                                             iii.    Hence show that the equation f(x)=0 has exactly one real root and state its value. b.   The curve with equation  is […]

Past Papers’ Solutions | Assessment & Qualification Alliance (AQA) | AS & A level | Mathematics 6360 | Pure Core 1 (6360-MPC1) | Year 2007 | June | Q#7

Hits: 17   Question The quadratic equation where k is a constant, has real roots. a.   Show that . b.                 i.               Factorise .          ii.               Hence, or otherwise, solve the quadratic inequality  Solution a.   We are given a quadratic equation as follows; We are also given that it has real roots. For a quadratic […]

Past Papers’ Solutions | Assessment & Qualification Alliance (AQA) | AS & A level | Mathematics 6360 | Pure Core 1 (6360-MPC1) | Year 2007 | January | Q#7

Hits: 13   Question The quadratic equation  has real roots. i.       Show that .  ii.       Hence find the possible values of . Solution i.   We are given the equation It is a quadratic equation and we are also given that it has real roots. For a quadratic equation , the expression for solution is; Where  is called discriminant. If , the equation will […]