SOLUTION: a. What is the formula for the determinant of the given matrix expanding by cofactors on the first row AND second row? a b c d e f g h i b. What is the determinant?

Question 678321: a. What is the formula for the determinant of the given matrix expanding by cofactors on
the first row AND second row?
a b c
d e f
g h i

b. What is the determinant?

IM CONFUSED WHAT HE MEANS BY THE FIRST AND SECOND ROW. Thanks!!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a. What is the formula for the determinant of the given matrix expanding by cofactors on
the first row AND second row?
a b c
d e f
g h i
b. What is the determinant?
IM CONFUSED WHAT HE MEANS BY THE FIRST AND SECOND ROW. Thanks!!
-----------
The 1st row is the top row, a b c
The 2nd row is the next one, the middle row, d e f

RELATED QUESTIONS
matrix b is the result when matrix a is multiplied by a scalar. matrix a is a 2 by 2... (answered by ewatrrr)

For the matrix A=[ 1.7 −6.9 first row −7.2 4.9 second row] ,... (answered by ikleyn)

Find the determinant of this 3x3 matrix using expansion by minors about the second row (answered by Alan3354)

A theater has 45 seats in the first row, 49 in the second row, 53 seats in the third row... (answered by josmiceli)

to multiply matrices we multiply the elements of a row in the first matrix with the... (answered by jim_thompson5910)

Can someone Please help me solve this problem, Thank You very much!!! A theater has 41 (answered by ramkikk66)

The boats have lined up for the Regatta. The boats are lined up by size, smaller boats... (answered by ikleyn)

Hello, I would greatly appreciate it if a tutor could please verify my work for the... (answered by khwang)

Solve for X in a 2x3 matrix. [-4 -4 -2] [9 -3 -6] [3 -2 (answered by math_tutor2020)