College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 6, Matrices and Determinants - Section 6.4 - Determinants and Cramer's Rule - 6.4 Exercises - Page 534: 30

Answer

1080, must have an inverse

Work Step by Step

After plugging this into the calculator we get the determinant of 1080 which is nonzero. Thus the matrix must have an inverse.
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