Question

Find the value of determinant with R1=(1, 3, 5), R2=(2,
1, 4) and R3=(6, 2, 3)
O a. -14
O b. 39
C. 20
O d. -39
가 ų​

Answer 1

Answer:

Expansion along row.

=1(3×1-2×4)-3(2×3-6×4)+5(2×2-1×6)

=-5+54-10

=39