0580/21 Oct/Nov 2024, Question 5: Multiplying a Vector by a Scalar
Cambridge IGCSE Mathematics 0580 · Paper 21 (Extended) · Calculator · 2 marks
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The question, in short
Work out a scalar multiple of the column vector (6, −4) and the sum of the column vectors (4, −1) and (−7, 5).
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Part (a) · 1 mark
Multiply the column vector (6, −4) by 3 and give the resulting column vector.
- 13 × (6, −4) = (3 × 6, 3 × (−4)) = column vector (18, −12)
Answercolumn vector (18, −12)
Part (b) · 1 mark
Add the column vectors (4, −1) and (−7, 5) and give the resulting column vector.
- 1(4 + (−7), −1 + 5) = column vector (−3, 4)
Answercolumn vector (−3, 4)
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Also searched as: 0580/21/O/N/24 · 0580_w24_qp_21 · 0580 w24 21 · question 5.
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