SOLUTION: Matrices A, B, and C are given by A= open bracket 3, -2, 4/ 6 1 0/ -5 9 5 close bracket B= open bracket 1 5 0/ -8 4 7/ 2 3 -9 close bracket C= open bracket

Question 635548: Matrices A, B, and C are given by
A= open bracket 3, -2, 4/ 6 1 0/ -5 9 5 close bracket
B= open bracket 1 5 0/ -8 4 7/ 2 3 -9 close bracket
C= open bracket 3 -2 -7/ -4 5 1/ 3 0 6 close bracket
If D=A(2B+3C) find d(subscript) 23
Answer by jsmallt9(3758) (Show Source): You can put this solution on YOUR website!
First of all, this problem has nothing to do with Trigonometry. Please try to post your problems in a relevant category. You will get faster, better responses when problems are posted in the right categories.

If all you care about is then all you need to is multiply the 2nd row of the first matrix times the 3rd row of the second matrix:

Here's the full multiplication of the two matrices:

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