Hits: 462

# Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01R) | Year 2014 | June | Q#6

Hits: 462 Question Figure 1 shows the plan of a garden. The marked angles are right angles. The six edges are straight lines. The lengths shown in the diagram are given in metres. Given that the perimeter of the garden is greater than 40 m, a.   show that x > 1.7 Given that the area of the […]

# Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01) | Year 2014 | June | Q#3

Hits: 17 Question Find the set of values of x for which a.   b.   c.  both  and . Solution a.   We are given; b.   We are required to solve the inequality; We solve the following equation to find critical values of ; Now we have two options; Hence the critical points on the curve for the given condition are […]

# Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663A/01) | Year 2014 | January | Q#8

Hits: 212   Question The equation 2×2 + 2kx + (k+2) = 0, where k is a constant, has two distinct real roots. a.   Show that k satisfies k2 – 2k – 4 > 0 b.   Find the set of possible values of k. Solution a.   We are given that; For a quadratic equation , the expression […]