A=(1,2,3),B=(4,5,7),C=(−4,3,−6),D=(2,k,2) are four points. If the lines AB and CD are parallel, then k=

A=(1,2,3),B=(4,5,7),C=(−4,3,−6),D=(2,k,2) are four points. If the

1.	A=(1,2,3),B=(4,5,7),C=(−4,3,−6),D=(2,k,2) are four points. If the lines AB and CD are parallel, then k=
Answer» $A = (1, 2, 3), B = (4, 5, 7), C = (- 4, 3, - 6), D = (2, k, 2)$ are four points. If the lines $A B$ and $C D$ are parallel, then $k =$

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A=(1,2,3),B=(4,5,7),C=(−4,3,−6),D=(2,k,2) are four points. If the lines AB and CD are parallel, then k=

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