4 years ago

GIVING BRAINLIEST! Please help

Mathematics

1 answer:

MariettaO [177]4 years ago

4 0

Answer:

the marked answer is correct

Step-by-step explanation:

The desired end result is an identity matrix in the first three columns. The diagonal values are 1, as needed, so what remains is to eliminate the off-diagonal values. In row 2 that can be done by adding row 3 to it.

The next step should be to add rows 2 and 3 and replace row 2 with that sum.

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