Can we do it as first add all the rows and then make 3(a+b) common from R1 and then add - Applied Mathematics - Determinants

Question

Can we do it as first add all the rows and then make 3(a+b) common
from R1 and then add all columns and take 3 common from C1 and then
C1->C1-C2 and then expanding ?

Aman Kumar · Accepted Answer

Can we do it as first add all the rows and then make 3(a+b) common from R1 and then add all columns and take 3 common from C1 and then C1->C1-C2 and then expanding ?