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OpenStudy (anonymous):
If D= [-7 2 ] Find -3D [ 4 3 ] [-1 0 ] A. [ 21 2 ] [ -12 3 ] [ 3 0 ] B. No solution C. [ 21 -6 ] [ 4 3 ] [ -1 0 ] D. [ 21 -6 ] [ -12 -9 ] [ 3 0 ]
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OpenStudy (anonymous):
every element in the matrix is multiplied by -3. So choose now ,:)
OpenStudy (anonymous):
D ?
OpenStudy (anonymous):
yep
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