DETERMINANTS

[half ridge]

Help 😭 i tried using sarrus rule it aint working

[fringe escarp]

1. Do not ping the Moderators, unless someone is breaking the rules.
2. Do not ping the Helper Moderators, unless there is a conflict between helpers.
3. Do not ping other members randomly for help.
4. Ask your question and show the work you've done so far. If you've posted a screenshot of a question, specify which part you need help with.
5. Wait patiently for a helper to come along.
6. If the Helper has answered your question, remember to thank them with the Mathematics Ranks bot and close the thread with:

+close
Feel free to nominate the person for helper of the week in #helper-nominations
If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[gritty dagger]

Maybe think about alternate signs

What's the minimum for a 2x2 composed of 1s and -1s?

[gritty dagger]

Arrrr you sure about that

[half ridge]

1 -1 1 -1
1 -1 -1 1

-1 1
1 -1

all give 0

[gritty dagger]

You're not thinking of the last permutation

[half ridge]

oh shit

my bad man

one sec

[gritty dagger]

You're good

[half ridge]

-1?

no wait

[gritty dagger]

No

[half ridge]

ah idk

[gritty dagger]

1 1
1 -1

[half ridge]

oh =2

-2*

damn

now

how do i do this

[gritty dagger]

Consider signs

[half ridge]

i tried

[gritty dagger]

What did you get?

[half ridge]

i tried combinations

[undone helm]

Trial and error is all you could do

Though there are ways involving areas represented by matrices (parallelepiped)

[gritty dagger]

What is the minimum signage change?

[half ridge]

dang man (wsp btw)

[undone helm]

sup

i struggled on the same exact problem months ago

when someone told me about the volume shit

[half ridge]

what is that

[undone helm]

im not aware either 💀

its like

matrices repesent a volume

[gritty dagger]

Yes, det(M) represents (in 3D) the volume change of the original shape as it is transformed into its current shape. In the case of the original shape being a unit square, it'll be transformed into a parallelepiped.

That looks so chatgpt

Grammarly turning my words into chatgpt be like:

[undone helm]

the first sentence made no real sense to me :Skul

[crystal magnet]

@half ridge

:HelpIcon:| Help Reminder

Hello middlechildvibes, this is a friendly reminder that your help request has been inactive for more than 24 hours. If you no longer need assistance, please consider closing the thread using the +close command. This thread will be automatically closed in 3 days if it remains inactive.

[crystal magnet]

@undone helm @gritty dagger The user still needs help with this help request.

[undone helm]

oops

[half ridge]

agreed