Using properties of determinants prove that:
[R1’ = R1 - R2 & R2’ = R2 - R3]
[R1’ = R1/a & R2’ = R2/a]
= a2[a + z - ( - y) - ( - x)] [expansion by first row]
= a2(a + x + y + z)
1
Using properties of determinants prove that:
[R1’ = R1 - R2 & R2’ = R2 - R3]
[R1’ = R1/a & R2’ = R2/a]
= a2[a + z - ( - y) - ( - x)] [expansion by first row]
= a2(a + x + y + z)