Finding the Inverse of a 3 x 3 Matrix using Determinants and Cofactors - Example 2

[CJSparrow09]

you are very helpful! great tutorial dude! ;)

[patrickJMT]

@CJSparrow09 thanks, happy to help :)

[m9rfighter]

a tip for the switching part, just write down columns as rows and it works! (at least for a 3x3 matrix)

[khilozozo02]

some other guy tried to pull a quick one with a white board and markers. i thought it was you and when i heard a different voice i almost had a heart attack. i need to report him

[patrickJMT]

@khilozozo02 yes, there are a lot of people doing the pen / paper / white board thing on youtube now :)

[afgibnasina]

man with you videos i can earn a ba in math. your teaching skills are amzing. i am an english major and mult. subject teacher. i use your videos for ca state math exam. your videos are better than a prep course on the cset. i wish i had the time to watch all your videos.

[patrickJMT]

@afgibnasina glad you like them ;)

[thebigbassboy]

ur a math god, u have helped me soo much this year. THANKS

[champ12345ize]

cool man! I am now finally understand matrix

[ThePurdue]

u lost me at "lets find the inverse of this matrix"

[ya7yo7a11]

thank you very much Patrick, you've helped so much to understand this lesson

thanks again and keep it up bro.

[Panndaahh]

you are so so so amazing.

[waffledude111111]

Thank you sir, this helped me a lot for my assignments.

[4kx]

great! thanks from poland:D

[Turalmelikli]

thanks men,you really helped me ,now i got inverse matrix

[guube15]

this guy is a rock he helped me alot , if i saw him one day am gonna give him big love ,,,

[csarita7]

could you tell me why is the determinant of the matrix in the middle 16 and not 8, because when you do 3x4 its 12 then minus 4 is 8?

THANK YOU

[xotweetypiexo]

you are soul reason im going to pass linear algebra

[emericaskater120]

What is wrong with the first problem?

[jwillrocku93]

You are so much more help than my Math text book! Thanks!!!! ^_^

[spartan387]

i have loved you since 2009, high school calculus, im currently a sophmore at utd studying electrical engineering and you have assisted me with ALL of my math, and now i tutor my peers. I also shared your videos with them and everyone including myself have improved our gpa's somewhat. I'm now currently taking multi variable calc, linear algebra, digital circuits, and physics e & m. You may not be able to help with all of my classes but you can totally help me with math thanks.

[patrickJMT]

@spartan387 glad that i have been able to help you for so long : ) go forth and spread the love to others!

[dengzkieme]

thanks a lot!

[khomphuong]

you da bomb patrickMJT .

[garvess]

Bravo! Much better explanation than any math text I've seen to date.

[TheRandomGenerator]

I swear to god I could masturbate to these videos.

[Mrrajitha2009]

thanks

[casp3rization]

I wouldn't know patrickJMT if it is not because my math teacher is sucks

[liassic]

I had a bet with my Dad that youtube was incredible and had the answer to everything.

He said "Fine, youtube your homework and see what comes up"

I did what he said and this video came up first. He's now £50 poorer.

[LeBadman]

@liassic Bargaining with your dad? What the fuck?

[honeypot11]

holy moly these are long o.o

at least i understand it much better now--thank you!

[hawkeye611]

Jeez I feel like I could learn a years worth of course material in a day with videos like this. Thanks!

[elloyou007]

my teacher took 1 hours and 30 min to teach this and u taught it in 7 min super simple. oh yea my teacher took the entire class to do one problem so i fell asleep in class and thats why i didnt get it.lol

[CardinalSinga]

I am about to forget my Add Maths I learned. This is good revision.

[ApplesThatRead]

I totally understand why we need these.

I'm just sayin' thank the virgin mary for graphing calculators!

[bestxhack85]

thank s man for the tutorials, that was great !!

Thanks again.

[lazy4skipper]

and how we gonna know if the inverse exists or not ...

[AiShaaa92]

omg thank you so muchh!! this video was great! you did an excellent job!

[elarchenemy]

great video. keep that up man!

[kevinncc1701]

thanks dude

[aryan84f]

thank you som much! I appreciate it:)

[Chocobloomsful]

thanks from canada!

[forjustnu]

A great video, helpt me alot.

Many thanks from Sweden!

[patrickJMT]

@forjustnu nice, sweden! i would love to visit!

[1guerolito]

Thank you for uploading this video! I have a big test on matrices tomorrow in Algebra 3. My teacher never really explains the concepts clearly. This 7 minute video was more helpful than a week of math classes! :D Thanks again!

[heldridas]

Helped a lot to refresh my memory ;D Thanks a lot! I wish there were videos of inverse matrix working on module. Like for Hill cipher the module 26.