Question

If A is a 3x3 matrix find the determinant of A.

A= 3 8 7
9 2 4
5 1 3

Answer 1

got a ti 84?

Answer 2

what do you mean? can you explain it to me please?

Answer 3

CALCULATOR , NO I WONT EXPLAIN. ITS A MACHINE

Answer 4

there a many websites how to do a 3x3 determinant

Answer 5

|A|= 3(6-4) -8(27-20) +7(9-10)
|A|= 3(2) -8(7) +7(-1)
|A|= 6 -56 -7
|A|= -57

Answer 6

fan me if u like the answer

Answer 7

i already figured it out, thanks for the help anyway!