UPSC NDA I 2023 Mathematics Solved Paper

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Consider the following for the next two (02) items that follow :
The position vectors of two points A and B are
^
i
−
^
j
and
^
j
+
^
k
respectively.
[NDA I 2023]
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Question : 70 of 120
 
Marks: +1, -0
What is the magnitude of
→
AB
?
[NDA I 2023]
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