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If a plane passes through the points ( – 1, k , 0), (2, k , – 1), (1, 1, 2) and is parallel to the line 1 1 z 2 1 y 2 1 1 x       , then the value of ) 2 k )( 1 k ( 1 k 2    is

1. 6 13
2. 5 17
3. 17 5
4. 13 6

Correct answer: 6 13

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