Mathematics > A-Level Question Paper > A-Level Mathematics Exam Board: Edexcel | Download for quality grades | (All)
A-Level Mathematics Exam Board: Edexcel | Download for quality grades |
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1 a) Given that f(x) = x 3 – 4x 2 – 3x + 7, find f '(x). (2) b) Hence find the values of x for which f(x) is a decreasing function, giving your answer in the form {x : x > «a{} x : x < b... } where a and b are real numbers to be found. (3) 3 © CGP 2018 — copying more than 5% of this paper is not permitted Leave blank A-level Edexcel Maths / Set 1 / Paper 1 3 a) Express 2x3 1 6 _ i in the form ax b where a and b are integers to be found. (2) b) Hence find the x-coordinates of the points where the line y = 1 – 3x intersects the curve with equation 2x3 1 6 _ i + 6x – 18 = y 2 – y. (4) 4 For each of the following, prove that the statement is false. a) The exterior angles of a regular n-sided polygon are always acute. (1) b) For nŒ, n ≠ –1, n n +1 ≥ 0. [Show More]
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