OR (iv) Determine whether the following system of equations have
unique solution, no solution or infinitely many solutions :
5x+2y=16, 7X-4y = 2
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Answered by
6
so it have unique solution.
Answered by
3
5x + 2y = 16 -(i)
7x - 4y = 2 -(ii)
Now from (i) and (ii) ,we get
a = 5 , b = 2 , c = -16
A = 7 , B = -4 , C = -2
Then,
a/A = 5/7
and, b/B = 2/-4 =-1/2
So,
a/A is not equal to b/B
Therefore, it has unique solutions.
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