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UPSC NDA I 2019 Mathematics Solved Paper

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Question : 97 of 120
 
Marks: +1, -0
If the position vectors of points A and B are 3
^
i
− 2
^
j
+
^
k
 and 2
^
i
+ 4
^
j
 -3
^
k
 respectively, then what is the length of
→
AB
 ?
[NDA I 2019]
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