Finding a determinant using elementary row operations

[@gregotieno5457]

It actually took my professor a 2hr lesson to explain what you did in 10 minutes, good job sir🤝

[@theredloro2138]

Wow this was actually really helpful thanks

[@Sheenie.]

my favourite part: 7:35

[@finn7530]

lol i love the "big yikes"

[@fahad-qx6mw]

thanks a lot 😘😘

[@Asterics.]

I hate this big number, I always messed up somewhere

[@mrlogic3630]

This actually helps thanks

[@ChristosZonias]

can you exchange rows in this process

[@davidfriday7498]

Exchanging rows multiplies the determinant by -1. So, if you DO exchange rows, be sure to include a factor of -1 in front of the determinant!

[@OK-ri8eu]

that -13 times the third row would've taken me forever to solve, no calculators allowed. Thanks though to

[@AdonizedeckAckahBlayMiezah]

Anytime I try to do row operation using different rows I get different answers can you help me here please.

[@davidfriday7498]

I can't really help if I don't know what operations you're doing. If you can supply the row operations you did, I may be able to help.

[@BonsaMuluneh]

I'm really sorry Bayyee dadhabdeerta Be honest

[@free-stylersteam3241]

I am not able to understand this concept