# SOLUTION: Find the determinant of each matrix. i cant find how to do this in my book. so please write the steps with answers. thank you [-6 -7] [5 8] [1 -5] [-2 9] [

Algebra ->  Algebra  -> Matrices-and-determiminant -> SOLUTION: Find the determinant of each matrix. i cant find how to do this in my book. so please write the steps with answers. thank you [-6 -7] [5 8] [1 -5] [-2 9] [      Log On

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 Algebra: Matrices, determinant, Cramer rule Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Matrices-and-determiminant Question 177722: Find the determinant of each matrix. i cant find how to do this in my book. so please write the steps with answers. thank you [-6 -7] [5 8] [1 -5] [-2 9] [1 2 3] [6 0 5] [0 4 0]Answer by stanbon(57962)   (Show Source): You can put this solution on YOUR website!Use Google with search string "matrix determinant" to see how determinants are calculated. ------------- Your Problems: [-6 -7] [5 8] D = (-6*8)-(-7*5) = -48 + 35 = -13 ----------------------------------------- [1 -5] [-2 9] D = (1*9)-(-5*-2) = 9 - 10 = -1 ------------------------------------ [1 2 3] [6 0 5] [0 4 0] D = (1*0*0 + 6*4*3 + 0*5*2)-(3*0*0 + 5*4*1 + 0*6*2) = (0+72+0) - (0+20+0) = 52 ----------------------------------- Cheers, Stan H.