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+1 vote
2.8k views
in Three-dimensional geometry by (36.3k points)

The lines (x – 2)/1 = (y – 3)/1 = (4 – z)/k and (x – 1)/k = (y – 4)/2 = (z – 5)/1 are coplanar if k is 

(a) 1 

(b) 2 

(c) 0 

(d) 4

1 Answer

+1 vote
by (33.0k points)
selected by
 
Best answer

Answer is (b) 2

Given lines are

Since the lines are coplanar, so

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