Finding the Inverse of a 3 x 3 Matrix using Determinants and Cofactors - Example 3
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Uploader Comments (patrickJMT)
Top Comments
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Learning step by step is so much easier than learning from a text book!
Thanks for sharing!
1 year ago 18
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Who said maths is difficult, all you need is patrickJMT! Thankyou!
8 months ago 12
All Comments (71)
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I used this method to find the inverse of a 3 by 3 matrix, but it didn't work, no matter what. I've been on this problem for an hour. -_-
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You are the Mike Tyson of Mathematics.
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saved my ass! thank you!
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I have a question. when your doing the determinant, on the second one 0:32 . you put -1 .. shouldn't it positive one or is that # always negative?
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wow,, superb !
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ahh way easier then my profs way of doin it
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wow thanks! And doing math in Sharpie? That just shows this guy really knows what he's doing.
2 months ago 2
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My teacher says to loo, at the textbook I tell my friends to look up PatrickJMT
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Thank you kind sir, this is truly great. Now my assignment will go more smoothly.
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You have seriously saved my life. I don't know what I would have done if I hadn't found this video.
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You are my hero, thank you so much.
danimal2430 4 months ago 9
@danimal2430 no problem, happy to help
patrickJMT 4 months ago
Man, you got no idea how frustrating this was to me. After watching you explain this method it's become so easy, in fact, I enjoy solving these kind of problems now.. THANKS A LOT MAN!!
xxsul6anxx 5 months ago
@xxsul6anxx you are very welcome!
patrickJMT 5 months ago
how to inverse 5x5 and 4x4 matrix??
caekyubi9 10 months ago
@caekyubi9 well, one can generalize this procedure. i would use row reduction though
patrickJMT 10 months ago