1
Question
The determinant of the given matrix,
A=⎡⎢
⎢
⎢⎣2117710242261068235712⎤⎥
⎥
⎥⎦ will be ___________
The determinant of the given matrix,
A=⎡⎢
⎢
⎢⎣2117710242261068235712⎤⎥
⎥
⎥⎦ will be ___________
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Solution
The correct option is B 0
Given matrix A=⎡⎢
⎢
⎢⎣2117710242261068235712⎤⎥
⎥
⎥⎦
Operating, R1→R1−R2−R4, R2→R2−3R3
and R3→R3−2R4
A=⎡⎢
⎢
⎢⎣−8−120−26−201−4−60−15712⎤⎥
⎥
⎥⎦
|A|=−⎡⎢⎣−8−12−26−21−4−6−1⎤⎥⎦=0
Given matrix A=⎡⎢ ⎢ ⎢⎣2117710242261068235712⎤⎥ ⎥ ⎥⎦
Operating, R1→R1−R2−R4, R2→R2−3R3
and R3→R3−2R4
A=⎡⎢ ⎢ ⎢⎣−8−120−26−201−4−60−15712⎤⎥ ⎥ ⎥⎦
|A|=−⎡⎢⎣−8−12−26−21−4−6−1⎤⎥⎦=0
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