Question

Need help with cofactor expansion

Answer 1

http://www.wolframalpha.com/input/?i=det%28%7B%7B1%2C+-6%2C+-3%2C+0%7D%2C+%7B1%2C+4%2C+0%2C+-1%7D%2C+%7B6%2C+-1%2C+1%2C+-2%7D%2C+%7B-2%2C+0%2C+5%2C1%7D%29

Answer 2

not sure what I'm doing wrong, but my answer is WAAAY wrong ;(.

Answer 3

@TuringTest @mahmit2012 @jim_thompson5910 @cwrw238

Answer 4

ouch. i wasn't remembered...

Answer 5

I saw you posting already boo <3

Answer 6

@lgbasallote

Answer 7

@kropot72

Answer 8

@satellite73 save me!