Yea I’m gonna go watch my internet and then go to go home to go to
Answer:
a=formula : Sum of all side
= 3+5+3
=11 ans
Step-by-step explanation:
formula is sum of all side
so add 3+5+3 ans =11
this is simple method
Swapping rows alters the sign of the determinant:

Multiplying a single row by a scalar scales the determinant by the same amount:

Then

Answer:
8m+4g
Step-by-step explanation: