Equation A is true among the given equations.
What is a matrix?
A matrix is an array of values arranged in rows and columns, such that they are used to represent a mathematical object.
- Matrices are associative when they are multiplied.
- This means that any two adjacent matrices can be multiplied first and then the third one can be multiplied. This would yield the same answer.
- This means that equation A is true.
- In equation B, different matrices are multiplied and added. Therefore, the LHS is not equal to the RHS.
- In equation C, the order in which the matrices are written and multiplied is different. Matrices aren't commutative with multiplication. Therefore, the LHS is not equal to the RHS.
- Similarly, equation D is also wrong.
Thus, we have found that among the given equations, equation A is true.
Learn more about matrices here-https://brainly.com/question/1821869
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