Answers

2015-06-15T15:13:07+05:30
Given, equations:
x-2y=8
5x-10y=c
where,
a1=1, a2=5, b1=-2,b2=-10
For a unique solution, it is necessary:-
a1/a2 = b1/b2
1/5=2/10=1/5
Therefore, they have a unique solution
So, it is true because a1/a2=b1/b2 and it doesn't matter whatever the value of c is.
1 5 1