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Mathematics, 16.09.2021 22:00 frenchpotaetoes3702

4. Given B = 2 1 1 3 2 1
2 1 2

(a) Find the determinant, minor, cofactor and adjoint of matrix B.

(b) Find B-'. Hence solve the following simultaneous equations. 2x + y + 2 = 20 3x +2y + = = 14 2x + y +2= =12​

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4. Given B = 2 1 1 3 2 1
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