Calculating Determinants 4x4 (Example 1)

This video shows how to calculate determinants of order higher than 3.
Initial problem is the following: it's required to calculate determinant of matrix A of size 4x4.

Math Help: Linear Algebra

[WhiteSharkconcac]

I find it really a waste of time to calculate the determinant of 4x4 and above matrices. It's is so tedious and time-consuming and give no satisfaction at all once u have completed.

[jeffreystevens]

i swear the first comments i see on female tutor videos are people telling her she's hot

[FIXOVECIJA]

It's very hard for me to focus on determinants.

[darinebouzar]

it's the 1st time I understand well the determinant, thx so much, by the way u r so pretty :)

[AssignmentExpert]

Dear Mustafa Cukka, please look it over. The answer is 8.

[CannonRoadPilot]

i find it so much easier to convert it into row echelon form and then multiply it by the leading column values. but i guess that is sometimes more complicated?

[xpatrstarx]

Thousands of times better than my Matrices Professor :/ THANKYOU!!!!

[seppesaiful]

watch?v=vJLGWpob0T8

this is the easiest way to find determinant.

[devinpledger]

literally made this 10 times more complicated then it actually is lol dont watch this video

[arielcatli]

this would be a better tutorial if there is less ambiance noise.

[AssignmentExpert]

For sufficiently large matrices converting to the row echelon form is the best choice, because it requires lesser amount of calculations. However, cofactor expansion method (which we're using in this video) is sometimes more convenient than converting to echelon form if our matrix is not 100 000X100 000 (:

[AssignmentExpert]

Thanks for your opinion! Well, it appears to me that in my newest video there's no such disturbing noise. I've used a new camera to shoot it.

[lounisnei]

my sister i think better u go for 
1( 1x4-(-1x13)) -1 (3X4-1x13) +1 (3x-1 - (1x1 ))
ofc my matrix become like that 
1  -1   2
3   1   13
1  -1   4 
tyvm anyway

[shamimahmedansari]

well miss you look gorgeous n u teach way better than my maths teacher...

[AssignmentExpert]

Thanks for your appreciation! Hopefully, my videos are helpful to you as well.

[saf-wanadame]

you'd better created zeroes in the matrix by adding linear combinations of rows or columns to a certain row or column of the be easier.... :/

[AssignmentExpert]

You're most welcome! I'm extremely pleased if it helped you :)

[Astra]

try matrix cofactor method this one take too much time to solve

[mytrendmodel]

Thanks for the video although i think you could have used Subtraction at the first matrix, oh well great work and btw i confirm you're beautiful :^)

[derekroolz]

I enjoyed the first bit when you showed the summation equation for cofactor expansion, but there are more efficient ways to solve a 3x3 that don't require as many steps.