O-LevelMathematicsVectors and transformations4024/11 · Oct/Nov 2020 · Q223 Marks
A = (-1 2 / -4 3) B = (0 2 / 2 -3)
- (a)Find AB.[2]
- (b)C and C⁻¹ are 2 by 2 matrices. Write down the 2 by 2 matrix which is equivalent to CC⁻¹B.[1]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2020). The mark or mark type is shown in brackets.
- [2] (4 -4 / 6 -17)
- B1 for two or three correct elements in a 2 by 2 matrix
- [1] (0 2 / 2 -3)
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