4 marksMatrix Operations
CSEC Mathematics · May/June 2008 · Paper 2 · Question 14(a)
X and Y are two matrices where X = (-2 0 / 5 1) and Y = (4 -1 / 3 7).
Evaluate X² + Y.
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Practise this questionOther parts of this question
- 14(b)Find the 2 x 2 matrix which maps Q' back to Q.[2 marks]
- 14(c)(i)a)Determine the value of k.[4 marks]
- 14(c)(i)b)Hence write down the coordinates of E' and F'.[4 marks]
- 14(c)(ii)a)Determine the 2 x 2 matrix that represents a clockwise rotation of 90° about the origin.[5 marks]
- 14(c)(ii)b)Determine the coordinates of D''E''F'', the image of D'E'F', under this rotation.[5 marks]
- 14(c)(ii)c)Determine the 2 x 2 matrix that maps triangle DEF onto triangle D''E''F''.[5 marks]
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