Løs {cc}{2}&{4}{-1}&{2} | Microsoft Math Solver

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

Finn determinanten til matrisen.

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

For 2\times 2-matrisen \left(\begin{matrix}a&b\\c&d\end{matrix}\right) er determinanten ad-bc.

4-4\left(-1\right)

Multipliser 2 ganger 2.

4-\left(-4\right)

Multipliser 4 ganger -1.

8

Trekk fra -4 fra 4.

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