Quelpr
2 marksMatrix Operations

CSEC Mathematics · January 2016 · Paper 2 · Question 11(c)(i)

A and B are two 2 × 2 matrices such that A = (1 2; -4 3) and B = (5 -1; 0 3).

Calculate 2A + B.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 11(a)(i)Express EACH of the following in the form (x y): OB, AB, OM[5 marks]
  2. 11(a)(ii)Using a vector method, show that AC and OB are parallel.[2 marks]
  3. 11(b)Determine the value of p for which the matrix M is singular.[2 marks]
  4. 11(c)(ii)Determine B⁻¹, the inverse of B.[2 marks]
  5. 11(c)(iii)Given that (5 -1; 0 3)(x y) = (6 9), calculate the values of x and y.[2 marks]

More practice: the rest of this paper · more Matrix Operations questions · all CSEC Mathematics past papers