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The square of the distance of the point ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ 7 , 7 32 , 7 15 from the line 7 5 z 5 3 y 3 1 x + = + = + in the direction of the vector k ˆ 7 j ˆ 4 i ˆ + + is:

1. 54
2. 41
3. 66
4. 44

Correct answer: 66

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