Find the products of (i) ABC (ii) ACB and state whether they are equal.

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Given matrices:
A = \begin{bmatrix} 2 & \quad 1 \\ 4 & \quad 2 \end{bmatrix} and B = \begin{bmatrix} 3 & \quad 4 \\ -1 & \quad -2 \end{bmatrix}, C = \begin{bmatrix} -3 & \quad 1 \\ 0 & \quad -2 \end{bmatrix}
Find the products of (i) ABC (ii) ACB and state whether they are equal.

Solution:

ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 8 Matrices Ex 8.3

Evaluate : \begin{bmatrix} 4\sin { { 30 }^{ o } } & \quad 2cos{ 60 }^{ o } \\ sin{ 90 }^{ o } & \quad 2cos{ 0 }^{ o } \end{bmatrix}\begin{bmatrix} 4 & 5 \\ 5 & 4 \end{bmatrix}

Solution:

ML Aggarwal Class 10 Solutions for ICSE Maths Chapter 8 Matrices Ex 8.3

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