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What is the determinant of this matrix:
[tex]\left[\begin{array}{ccc}0&8\\7&0\end{array}\right][/tex]


Sagot :

Answer:

-56

Step-by-step explanation:

Formula to get determinant is::

[tex]\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] = ad-bc[/tex]

0(0)-8(7)

0 - 56

-56

[tex]\\ \rm\Rrightarrow \left|\begin{array}{ccc}0 &8 \\ 7& 0\end{array}\right|[/tex]

[tex]\\ \rm\Rrightarrow 0-8(7)[/tex]

[tex]\\ \rm\Rrightarrow 0-56[/tex]

[tex]\\ \rm\Rrightarrow -56[/tex]

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