Teaching DSSSB TGT Mock Test 2025 Engineering Mathematics Linear Algebra Matrix Algebra

यदि आव्यूह \(\left[\begin{array}{rrr}k & 1 & 2 \\ 1 & -1 & -2 \\ 1 & 1 & 4\end{array}\right]\) की शून्यता 1 है, तब k का मान है:

1

-1

2

0

3

1

4

2

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