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Inga [223]
3 years ago
13

What is the determinant of A = [ -2 2 -5 4 -1 -2 1 3 -5]

Mathematics
2 answers:
stepan [7]3 years ago
5 0

Answer:

-51

Step-by-step explanation:

\begin{vmatrix}-2&2&-5\\4&-1&-2\\1&3&-5\end{vmatrix}=\\=\mathsf{-10-4-60-5+40-12}=\\=\mathsf{-91+40}=\\=\mathsf{-51}

Butoxors [25]3 years ago
3 0

Answer:

-51

Step-by-step explanation:

\left[\begin{array}{ccc}-2&2&-5\\4&-1&-2\\1&3&-5\end{array}\right] =1*\left[\begin{array}{ccc}2&-5\\-1&-2\end{array}\right] +(-3)*\left[\begin{array}{ccc}-2&-5\\4&-2\end{array}\right] +(-5)*\left[\begin{array}{ccc}-2&2\\4&-1\end{array}\right] =-9+(-72)+30=-9-72+30=-51

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