CBSE Class 12 Math 2019 Delhi Set 1 Solved Paper

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Question : 22
Total: 29
If
^
i
+
^
j
+
^
k
,2
^
i
+5
^
j
,3
^
i
+2
^
j
3
^
k
and
^
i
6
^
j
^
k
respectively are the position vectors of points A,B,C and D, then find the angle between the straight lines AB and CD. Find whether
AB
and
CD
are collinear or not.
Solution:  
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