#Computing Determinant Textbook error? Sanity Check

9 messages · Page 1 of 1 (latest)

tiny bobcat Mar 31, 2024, 5:14 PM

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Here the textbook asks you to use Sarrus' Rule, which I did and i got 7, then I did cofactor expansion and got 7 as well, then wolfram got 7. Am I missing something? If the book is wrong thats kinda sick and twisted...i just corrected an online problem with the wrong determinant too lol. I guess it makes me feel better about my arithmetic going wrong sometimes.

warped doveBOT Mar 31, 2024, 5:14 PM

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broken fjord Mar 31, 2024, 5:21 PM

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tiny bobcat Here the textbook asks you to use Sarrus' Rule, which I did and i got 7, then I ...

nah

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looks right to me yours

tiny bobcat Mar 31, 2024, 5:24 PM

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broken fjord looks right to me yours

2 in a row haha, and i wonder why i go insane over this stuff

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thanks

tiny bobcat Mar 31, 2024, 5:28 PM

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broken fjord nah

...

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this might be the worst textbook ive ever used

broken fjord Mar 31, 2024, 5:30 PM

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tiny bobcat this might be the worst textbook ive ever used

Hopefully you didn't pay money for that