The coordinates of the points A, B, C, D are (4, \( \alpha \), \( 2...

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The coordinates of the points A, B, C, D are (4, \( \alpha \), \( 2),(5,-3,2),(\beta, 1,1) \) \& \( (3,3,-1) \). Line AB would
P be perpendicular to line \( \mathrm{CD} \) when

W
(1) \( \alpha=-1, \beta=-1 \)
(2) \( \alpha=1, \beta=2 \)
(3) \( \alpha=2, \beta=1 \)
(4) \( \alpha=2, \beta=2 \)
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