UPSC NDA I 2013 Mathematics Paper

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Question : 83 of 120
 
Marks: +1, -0
If |
→
a
|
=√2
,
|
→
b
|=√3
and |
→
a
+
→
b
|
=√6
, then what is |
→
a
−
→
b
|
equal to?
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