Further MathematicsMatrices and determinantsWAEC
For what value of k is the matrix with rows (k, 2) and (3, 6) singular?
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Answer: B. 1
A singular matrix has determinant 0: 6k − 6 = 0, so k = 1.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.