O-LevelAdditional MathematicsSimultaneous equations4037/11 · May/June 2013 · Q151 Mark

Given that A = [[2, -1], [3, 5]], find the adjoint matrix of A.

A[[5, 1], [-3, 2]]

B[[5, -3], [1, 2]]

C[[2, -3], [1, 5]]

D[[2, 1], [3, 5]]

✓ Correct answer

A: [[5, 1], [-3, 2]]

Oracle Prep sorts past-paper questions by topic, so you can drill Simultaneous equations and see which topics are most likely to come up next.

Topic: Simultaneous equations, O-Level Additional Mathematics (syllabus 4037). Multiple choice, 1 mark.
Source: O-Level Additional Mathematics, May/June 2013 Paper 1 Variant 1, question 15.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Find the coordinates of the points of intersection of the curve y² + y = 10x - 8x² and the line y + 4x + 1 = 0.

The line y = x + 4 intersects the curve 2x² + 3xy − y² + 1 = 0 at the points A and B. Find the length of the line AB.

The matrices A, B and C are given by A = (2 1 / 1 3 / 2 5), B = (2 1 3 4 / 1 5 6 7) and C = (9 10). Write down, but d…

Differentiate with respect to x

Find the first 3 terms of the expansion, in ascending powers of x, of (1 + 3x)6.

Find the set of values of k for which the equation x2 + (k – 2)x + (2k – 4) = 0 has real roots.