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(1 point) If a 4 x 4 matrix A with rows V1, V2, V3, and V4 has determinant det A = 2, 4v1 +6v2 5v1 + 9v2 then det = 1

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Answer #1

make a 4 x 4 matrix with info given. 4,6,0,0....5,9,0,0,.....0,0,2,0..... 0,0,0,2. This is your new matrix. find the determinant of this matrix which is 24. divide this determinant by the one they give you which is 2.  24/2 = 12.

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