AS & A Level Mathematics (9709) — October–November 2024, Paper 21
7 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →The variables x and y satisfy the equation a^(2y) = e^(3x+k), where a and k are constants. The graph of y against x is a straight line. Use logarithms to show that the gradient of…
Answer this question and get it marked →Solve the inequality x - 7 4x + 3. [4]
Answer this question and get it marked →The function f is defined by f(x) = tan²((1/2)x) for 0 ≤ x < π. Find the exact value of f'((2/3)π). [3]
Answer this question and get it marked →The polynomial p(x) is defined by p(x) = ax³ − ax² − 15x + 18, where a is a constant. It is given that (x + 2) is a factor of p(x). Find the value of a. [2]
Answer this question and get it marked →It is given that ∫ₐ^(a³) 10/(2x + 1) dx = 7, where a is a constant greater than 1. Show that a = ∛(0.5 e^(1.4)(2a + 1) − 0.5). [5]
Answer this question and get it marked →A curve has parametric equations x = (e^(2t) − 2)/(e^(2t) + 1), y = e^(3t) + 1. Find an expression for dy/dx in terms of t. [4]
Answer this question and get it marked →Prove that cos(θ + 30°) cos(θ + 60°) ≡ (1/4)√3 − (1/2)sin 2θ. [4]
Answer this question and get it marked →← October–November 2024 Paper 22 · October–November 2024 Paper 13 →