UPSC NDA 2 2016 Mathematics Solved Paper
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Which of the following are correct in respect of the system of equations , x + y + z = 8 , x − y + 2 z = 6 3 x − y + 5 z = k
1. They have no solution, ifk = 15
2. They have infinitely many solutions, ifk = 20
3. They have unique solution, ifk = 25
Select the correct answer using the code given below:
1. They have no solution, if
2. They have infinitely many solutions, if
3. They have unique solution, if
Select the correct answer using the code given below:
[NDA II 2016]
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