HCU MCA 2016 Paper
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Question : 30 of 75
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Let be a 4×4 matrix. Suppose that a matrix B is obtained from A by using following row operations:
R1 ↔ R2
R3 ↔ 4 ×R3
R4 ↔ R2
R2 ↔ R2 + 3 × R3
If |A|=20, then what is |B| ?
R1 ↔ R2
R3 ↔ 4 ×R3
R4 ↔ R2
R2 ↔ R2 + 3 × R3
If |A|=20, then what is |B| ?
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