Accedmychevron_right11thchevron_rightmathchevron_rightMatrices And Determinantschevron_rightExercise 4.1

Key facts

For conformable matrices A,B,CA,B,C:

(AB)C=A(BC)(AB)C=A(BC) A(B+C)=AB+ACA(B+C)=AB+AC

These are true properties of matrix multiplication.