Further MathematicsMatrices and determinantsWAEC
Find the determinant of the 3 × 3 matrix with rows (1, 0, 2), (0, 3, 1) and (2, 1, 0).
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Answer: D. −13
1(3×0 − 1×1) − 0 + 2(0×1 − 3×2) = −1 − 12 = −13.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.