UPSC NDA I 2010 Mathematics Paper
© examsiri.com
Question : 7 of 120
Marks:
+1,
-0
If the line through the points A ( k , 1 , − 1 ) and B ( 2 k , 0 , 2 ) is perpendicular to the line through the points B and C ( 2 + 2 k , k , 1 ) , then what is the value of k ?
Go to Question: