Quick questions on Matrices and linear transformations (WACE Year 12 Mathematics Specialist Unit 4)

Q: What is sign slips in the inverse?

The inverse swaps a and d and negates b and c. A common error is negating the wrong pair or forgetting to divide by A.

1short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is sign slips in the inverse?

Show answer

The inverse swaps

a

and

d

and negates

b

and

c

. A common error is negating the wrong pair or forgetting to divide by

\det A

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