Leysa {cc}{2}&{4}{-1}&{2} | Microsoft stærðfræði leysa

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Afritað á klemmuspjald

det(\left(\begin{matrix}2&4\\-1&2\end{matrix}\right))

Finndu ákveðu fylkisins.

2\times 2-4\left(-1\right)

Fyrir 2\times 2 fylki \left(\begin{matrix}a&b\\c&d\end{matrix}\right) er ákveðan ad-bc.

4-4\left(-1\right)

Margfaldaðu 2 sinnum 2.

4-\left(-4\right)

Margfaldaðu 4 sinnum -1.

8

Dragðu -4 frá 4.

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