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

• 7
• 100% (1) 1 out of 1 people found this document helpful

This preview shows page 1 - 3 out of 7 pages.

The preview shows page 1 - 3 out of 7 pages.
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
1/7
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

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 7 pages?