Inequalities (Edexcel -2010) Archives — O/A Level Solutions

Past Papers’ Solutions | Edexcel | AS & A level | Mathematics | Core Mathematics 1 (C1-6663/01) | Year 2010 | June | Q#3

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 (C1-6663/01) | Year 2010 | January | Q#10

Question f(x) = x2 + 4kx + (3+11k), where k is a constant. a) Express f(x) in the form (x + p)2 + q, where p and q are constants to be found in terms of k. Given that the equation f(x) = 0 has no real roots, b) find the set of possible values of […]