MathematicsMatrices and determinantsJAMB
If the determinant of [[x, 2], [3, 4]] is 10, find x.
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Answer: B. 4
4x − 6 = 10, so 4x = 16 and x = 4.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.
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