MatricesHard
Question
If the lines 
and 
are coplanar, then k can have :
and are coplanar, then k can have :Options
A.any value
B.exactly one value
C.exactly two values
D.exactly three values
Solution
⇒ 
⇒ 
⇒ (1 + 2k) + (1 + k2) - (2 - k) = 0
⇒ k2 + 3k = 0 
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