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

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

Dod o hyd i ddeterminannau’r matrics.

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

Ar gyfer y matrics 2\times 2 \left(\begin{matrix}a&b\\c&d\end{matrix}\right), y penderfynydd yw ad-bc.

4-4\left(-1\right)

Lluoswch 2 â 2.

4-\left(-4\right)

Lluoswch 4 â -1.

8

Tynnu -4 o 4.

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