Determinant of 3x3 Matrices, 2x2 Matrix, Precalculus Video Tutorial

This precalculus video tutorial explains how to find the determinant of 3x3 matrices and 2x2 matrices.
Introduction to Matrices: • Intro to Matrices
Adding and Subtracting Matrices:
• Adding and Subtracting...
Scalar Multiplication of Matrices:
• Scalar Multiplication ...
Solving Matrix Equations:
• Solving Matrix Equations
Multiplying Matrices:
• Multiplying Matrices
__________________________________
Gaussian Elimination & Row Echelon Form:
• Gaussian Elimination &...
Gauss Jordan Elimination:
• Gauss Jordan Eliminati...
Gaussian Elimination With 4 Variables:
• Gaussian Elimination W...
Inverse of a 2x2 Matrix:
• Inverse of a 2x2 Matrix
Inverse of a 3x3 Matrix:
• Inverse of a 3x3 Matrix
__________________________________
Determinant of 2x2 and 3x3 Matrix:
• Determinant of 3x3 Mat...
Determinant of 4x4 Matrix:
• How To Find The Determ...
Cramer's Rule - 2x2 Linear System:
• Cramer's Rule - 2x2 Li...
Cramer's Rule - 3x3 Linear System:
• Cramer's Rule - 3x3 Li...
___________________________________
Final Exams and Video Playlists:
www.video-tutor.net/
Full-Length Videos and Worksheets:
/ collections

Пікірлер: 482

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    @TheOrganicChemistryTutor Жыл бұрын

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    Thank you so much!! You literally helped clear up all my issues on determinants!

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    @natu.d95464 ай бұрын

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    MR. Organic Chemistry Tutor, thank you for a solid video/lecture on How to find the Determinant of a 2X2 and a 3X3 Matrix/Matrices in Precalculus.

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  • @MikeMike-yc8gg
    @MikeMike-yc8gg4 жыл бұрын

    1:54 bookmark - the first thing you want to do is get "rid" of the first row and column and notice what you have "leftover" ( In this case its b2 ,c2 b3 , c3 . ) so a1 is a 2x2 matrix which is b2 , c2 ,b3 , c3 . 2:05 using b1 and crossing everything is around it ( since b1 is in the first row and second column we cross out the first row and second column , and are left with a2 , c2 , c2 , c3 2:37 3:23 - after you use the formula to have everything "setup" use the method of a 2x2 matrix (where. * ad-bc ) 3:35 first example 6:15 adding all the numbers to get the determinant of out 3x3 matrix in this first example . 6:49 - second example

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    @xtcmxm578

    4 жыл бұрын

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    2 жыл бұрын

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    @MicroBugs3 жыл бұрын

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    3:14 why u but - before b1 and + before C1? Where these signs came from Thanks

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  • @TL-sk6xf
    @TL-sk6xf3 ай бұрын

    Why aren't the coefficients squared in the first step line? I thought it's k^n[A,nxn], and since n = 2, it would be 2^2, 4^2 and (-3)^2 in front of the 2x2 matrices?

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  • @i.ktasie5082
    @i.ktasie50824 жыл бұрын

    Hello please is it possible to calculate the determinant of a 3x4 matrice

  • @user-qk7xc4zp7t
    @user-qk7xc4zp7t7 ай бұрын

    Why did you make the second expression negative and the third positive

  • @sharonngulube3437
    @sharonngulube34374 жыл бұрын

    Bravo,well explained.