A) no common solution
B) infinitely many solutions
C) unique solution
D) None of these
Correct Answer: C
Solution :
[c] Equations are \[x-y=0,\,\,\,\,\,x+y=0.\] |
\[\frac{1}{1}\ne \frac{-1}{1}\] |
\[\therefore \] unique solution. |
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