#159 · Linear Algebra · Determinants

Scaling volume

A linear map $T : R^{3} \to R^{3}$ has $det T = - 2$ . The unit cube is mapped to a parallelepiped $P$ . Then $T$ is applied again to $P$ . What is the volume of $T (T (cube))$ ?

~3 minAnswer checked instantlyDeterminant as volumeMultiplicativity

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