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QJEEM18Ma6f60: JEE Main 2018 Mathematics - Class 12 JEEM18Ma6f60 Solution: Let S be the set of all real values of k for which the systemof …
Let S be the set of all real values of k for which the systemof linear equations
x + y + z = 2
2x + y z = 3
3x + 2y + kz = 4
has a unique solution. Then S is :
x + y + z = 2
2x + y
3x + 2y + kz = 4
has a unique solution. Then S is :
Multiple Choice Options
- A an empty set
- B equal to {0}
- C equal to R
- D equal to R − {0}
Step-by-Step Verified Solution
As system of linear equations have unique solutions so, determinant of coefficient 0
0
k + 2 - (2k + 3) + 1 0
k 0
k R - {0}