Mathematics · Matrices
A, B, C, D are square matrices such that A + B is symmetric, A - B is skew-symmetric, and D is the transpose of C. If A = [-1 2 3] [ 4 3 -2] [ 3 -4 5] and C = [ 0 1 -2] [ 2 -1 0] [ 0 2 1] then the matrix B + D =
- 1[ 1 -2 6] [-2 3 2] [ 6 2 1]
- 2[ 3 2 -2] [ 2 6 3] [-2 3 2]
- 3[-1 6 3] [ 3 2 -2] [ 1 -2 6]✓
- 4[-1 6 3] [ 6 2 -2] [ 3 -2 6]
Correct answer
[-1 6 3] [ 3 2 -2] [ 1 -2 6]
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