Ononot — Given \det \begin{pmatrix} a & b \\ c & d \end{pmatrix} = 10

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Determinantseasy

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Given $\det \begin{pmatrix} a & b \\ c & d \end{pmatrix} = 10$ , what is $\det \begin{pmatrix} 2a & 2b \\ c & d \end{pmatrix}$ ?