# MA 114 hw 4.3.docx - Use row reduction to find the inverse...

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Use row reduction to find the inverse of the given matrix if it exists, and check your answer by multiplication. HINT [See Example 2.] (If the inverse doesn't exist, enter DNE in all answerboxes.)
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-1 2.1/1 points| Previous AnswersWaneFM6 4.3.039.Ask Your TeacherMy NotesQuestion PartPointsSubmissions UsedUse technology to find the inverse of the given matrix (when it exists). Round all entries in your answer to two decimal places. (Caution: Because of rounding errors, technology sometimes produces an "inverse" of a singular matrix. These often can be recognized by their huge entries. If the inverse doesn't exist, enter DNE in all answer blanks.)
3.1/1 points| Previous AnswersWaneFM6 4.3.043.Ask Your TeacherMy NotesUse matrix inversion to solve the given system of linear equations. (You previously solved this system using row reduction in Chapter 2.)x+ y= 2xy= 1(x, y) = \$\$32,124.1/1 points| Previous AnswersWaneFM6 4.3.047.Ask Your TeacherMy NotesUse matrix inversion to solve the given system of linear equations. (You previously solved this system using row reduction in Chapter 2.)x+ 2yz= 0xy+ 2z= 02xz= 6(x, y, z) = \$\$6,6,65.1/1 points| Previous AnswersWaneFM6 4.3.049.
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