sanchez626
26.06.2020 •
Mathematics
Compute the determinant using a cofactor expansion across the first row. Also compute the determinant by a cofactor expansion down the second column. StartAbsoluteValue Start 3 By 3 Matrix 1st Row 1st Column 3 2nd Column 0 3rd Column 3 2nd Row 1st Column 2 2nd Column 3 3rd Column 3 3rd Row 1st Column 0 2nd Column 4 3rd Column negative 2 EndMatrix EndAbsoluteValue
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Ответ:
Step-by-step explanation:
It is given that
By cofactor expansion across the first row, we get
Therefore, the value of determinant is -30.
By cofactor expansion across the second column, we get
Therefore, the value of determinant is -30.
Ответ:
hope this helps