Question

is there fast way to finding determinant of 3 by 3

Answer 1

lol, yes and no

Answer 2

spose you got columns

c1 c2 c3 copy c1 and c2 at the end

c1 c2 c3 c1 c2

then its a diagonal method

Answer 3

oh, let me try it

Answer 4

its similar to the 2x2 now