Linear Algebra 2.2.1 The Inverse of a Matrix

[@bazarbekovic]

I got scared by that “Noo”

[@andojarruceljaym.5161]

me watching this at 3am then suddenly that "noo!"

[@SawFinMath]

I didn’t even know that was there!

[@camerongarson9963]

I've been up for 3 days cramming for my final, when I heard that "noo"... I genuinely thought I was hallucinating

[@PeanutsAnDEgO]

9:06 😂

[@SawFinMath]

Haha I don't even know what that is!

[@kevintarus8273]

😂sounds like a cat

[@mannb1023]

@@kevintarus8273 NoOOooo

[@TheAntiFlash]

Hahahaha, heard that and went straight to the comments lmao

[@ElmerOmero14]

It's the most played part of this video LOL.

[@EH-cb5fr]

Me every time I try linear algebra problems on my own 9:06

[@SawFinMath]

Haha that is funny and also the noise is a little scary. Apparently the ghosts in my house don’t like linear algebra.

[@kumaravelrajan]

I was wondering if only I heard the sound 🤣

[@johnbudileanu3245]

Nice work Kimberley! Really helps me when you explain these concepts! Just bringing to your attention that at around 1:47 you referred to "In" as the inverse but I think you may have meant the identity matrix? Just to avoid any confusion... Love the videos :)

[@amycoronado4920]

Is the cat okay?? 😂

[@SawFinMath]

No cat. Just twin toddlers

[@sophiaceva814]

Thank you for posting these great videos. I am taking Open Learning courses and you have helped me get A's in Discrete math and Linear Algebra.

[@qumburger1371]

9:06 NOOOYY XD

[@WOLF91]

I love the way you explain. Thank you !

[@SawFinMath]

So nice of you

[@БагдатБагдатов-ы3ж]

You are the one of the best teachers

[@maxpercer7119]

9:01 That actually is a proof that the matrix 1/(ad-bc) * [ -d , -b ; -c , a ] is *an* inverse of the matrix A= [a, b ; c , d ]. Coupled with the theorem that an inverse, if it exists, is unique, it suffices to show it is *the* inverse matrix of A , symbolized by A^-1.

[@ErickandAnimals]

Its the middle of the night and that NO startled me 😭

[@user-fk5di4me9c]

Thank you the way you explain things makes learning easy and somth.

[@user-fk5di4me9c]

you got me so bad i tried finding the inverse immediately without checking first if it has an inverse or not LOL

[@InterestingFreshNews]

Thank you so much

[@feilongish]

Easy stuff thanks for the great explanation.

[@noitnettaattention]

@ 9:06 some little KZbin ghost doesn't approve your solution ))))))))))

[@saadafm]

sounded like a cat haha

[@mikegranberryii]

@1:46 do you mean matrix A times the Identity matrix = A?

[@SawFinMath]

Yes :)

[@aamirnaeem2381]

how about a set A with inverse A-, how to solve A^-2

[@mel-kr2xu]

5:31 i dont get why b and c are negatives

[@wintutorials2282]

that's just how you create an inverse 2x2 matrix upper-left to bottom-right elements switch order. Bottom left to upper right switch signs. If you wouldn't switch the signs, multiplying a matrix with the inverse wouldnt result in a identity matrix (look at 7:24), the diagonal fro mbottom-left to upper-right become 0 (cd-cd) = 0 At the start of the video she explained, matrix * inverse should be idenity (just like how 3 * 1/3 = 1) So the sign switch is done so that property hold

[@shaukatshaukat710]

Find the inverse of 3by 3 matrix

[@lym4w3]

I don't get it at all

[@CrzyCreatives]

9:06 what if shes being abused????

[@zhenwu5778]

lol

[@ominaholic]

by math? 😂😂

[@wintutorials2282]

nooooo

[@feilongish]

8:00

[@severussnape4396]

bu videoya geri dön

[@chilipismysignature5031]

Noooooo 🤣