5 marksInverse of a 2x2 Matrix
CSEC Mathematics · January 2004 · Paper 2 · Question 14(b)(ii)
Given that 3x + 5y = 19 and 2x + 4y = 14.
Determine the inverse of matrix A.
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Practise this questionOther parts of this question
- 14(a)Calculate the value of p.[2 marks]
- 14(b)(i)Express the pair of equations in the form AX = B, where A, X and B are matrices.[5 marks]
- 14(b)(iii)Evaluate: A⁻¹B.[5 marks]
- 14(c)(i)Describe FULLY the transformation, V.[8 marks]
- 14(c)(ii)Describe FULLY the transformation, W.[8 marks]
- 14(c)(iii)Write the single matrix [[p, r], [q, p]], which represents the combined transformation, V followed by W.[8 marks]
- 14(c)(iv)Calculate the image of the point (6,-4) under the combined transformation in (c) (iii) above.[8 marks]
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