Evaluating Determinants of a 2x2 and 3x3 Matrix

This video shows how to evaluate 2x2 and 3x3 determinants.

[taoyeahright]

the odd thing about these videos is I find them more helpful for matrices than any other videos. I can't seem to figure out why that is... but I feel like your slowing things down enough not way too much bc you can skip ahead and your still showing/explaining all steps. This is the level of detail that I feel is best for true understanding of any subject but especially necessary for a subject as convoluted as matrices.

[gregnixon]

Thank you for explaining the necessary detail of how you decide to add or subtract each product of the co-factor and its determinant.

[pandaonsteroids]

I think best part of your videos is the definition in words + example combo. Because if I don't understand the words, the example explains it. If I am confused about a specific detail in the example, usually the definition explains it. 👍👍

[Mathispoweru]

For a 4x4, you would need to use expansion by minors.

[GroskyLco]

You teach very good and clear to understand what's going on~ ^^
But my teacher in school teach like shit and always skip the steps~

[edsovi]

isn't that supposed to be -2 + 10 + 6 = 14 ?
since it is ad-bc so 3(0)= 0 and 1(-1)= -1 then 0-(-1) which is = 1 which will be multiplied by -2= -2

[nuhamalik]

This video was very helpful, thank you!

[balochan]

can method 1 be applied for 4x4 determinant?

[toptext]

Radical video but I wanna know who the hell would use the second option

[thecraccker]

I could calculate but i had a smal problem with 2x2 determinent -.-