HW 15.pdf - 7/29/2018 HW 15 Ghazi Aljohani...

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7/29/2018HW 15Current Score :28 / 28Due :Sunday, July 29 2018 11:59 PM CDT1.2/2 points |Previous AnswersHoltLinAlg2 5.1.007.A.HW 15 (Homework)Ghazi Aljohani201830-MATH-237-100, Summer 2Instructor: Wei ZhuWebAssign
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2.5/5 points |Previous AnswersHoltLinAlg2 5.1.016.Find the determinant for the given matrixAin two ways, by using cofactor expansion along the indicatedrow or column.(a) along the second rowdet(A) =-4(b) along the second columndet(A) =-4Use the determinant to decide ifis invertible.A=036720−1011313020)
7/29/2018HW 152/73.1/1 points |Previous AnswersHoltLinAlg2 5.1.027-034b.WA.Tut.Find all real values ofasuch that the given matrix is not invertible. (HINT: Think determinants, not rowoperations. Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)Additional MaterialsTutorial

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Term
Fall
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Tags
Linear Algebra, Invertible matrix, Det

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