121011 4-1010 13131 019121 12101

Find JA-11. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |Al and then applying the formula JA-1| = 3 4 A = 1 2 JA-| = |

Evaluate the following determinant. Show all steps 2 1 -1 1 0 2 3 -2 4

Find JA-11. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding JA| and then applying the formula from 1 0 1 A = 5 -1 4 8 0 |A-| = |-1/6 H 5 5