The Determinant of a scalar multiple of a Matrix In Exercises 7-14, use the fact that
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- The Determinant of the Inverse of a Matrix In Exercises 29-32, find |A-1|. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |A|and then applying the formula from Theorem 3.8, |A-1|=1|A|. A=[112248110]arrow_forwardFind the determinant of the matrix in Exercise 16 using the method of expansion by cofactors. Use a the third row and b the first column. 16. [342631478]arrow_forwardFind a Determinant In Exercises 19-32, use expansion by cofactors to find the determinant of the matrix [246031005]arrow_forward
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- Finding the Determinant of an Elementary Matrix In Exercises 3942, find the determinant of the elementary matrix. Assumek0. [100k10001]arrow_forwardThe Determinant of a Matrix In Exercises 1-12, find the determinant of the matrix. [3241]arrow_forwardCompute the determinants in Exercises 7-15 using cofactor expansion along any row or column that seems convenient. 11.arrow_forward
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