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If the four points, whose position vectors are k ˆ 4 j ˆ 2 i ˆ 5 and k ˆ 3 j ˆ i ˆ 2 , k ˆ j ˆ 2 i ˆ , k 2 j ˆ 4 i ˆ 3           are coplanar, then  is equal to

1. 17 107
2. 17 107 
3. 17 73
4. 17 73  CAREER POINT CAREER POINT Ltd., CP Tower, IPIA, Road No.1, Kota (Raj.), Ph: 0 81 - 47250011 www.careerpoint.ac.in 24 JEE Main Online Paper

Correct answer: 17 73

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