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The number of values of k for which

Question:

The number of values of $k$ for which the linear equations

$4 x+k y+2 z=0$

$k x+4 y+z=0$

$2 x+2 y+z=0$

possess a non-zero solution is :-

1. 1

2. zero

3. 3

4. 2

Correct Option: , 4

Solution:

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