The Sizes of Two Matrices Are Given $\mathrm { A }$

question 391

Multiple Choice

The sizes of two matrices are given. Find the size of the product AB and the size of the product BA, if the given product
can be calculated.
- $\mathrm { A }$ is $2 \times 4 ; \mathrm { B }$ is $4 \times 2$

• A) \(\mathrm { AB }\) is \(2 \times 2\); BA cannot be calculated.
• B) \(\mathrm { AB }\) is \(4 \times 4\); BA is \(2 \times 2\).
• C) AB cannot be calculated; BA is \(4 \times 4\).
• D) \(\mathrm { AB }\) is \(2 \times 2\); BA is \(4 \times 4\).

---

Definitions:

Impairment

The diminution in the recoverable value of an asset below its carrying amount, reflecting a decline in the quality, quantity, or market value of the asset.

AASB 136

The Australian Accounting Standards Board standard on impairment of assets, providing guidelines on how an entity should test for and recognize impairment.

AASB 136

The Australian Accounting Standards Board standard related to the impairment of assets, requiring testing for impairment to ensure asset values are not overstated.

Impairment Losses

Financial write-downs recognized when the carrying amount of an asset exceeds its recoverable amount, indicating that the asset has suffered a decline in value that is not recoverable.