KCET 2016 Math Solved Paper

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Question : 40 of 60
 
Marks: +1, -0
If |
→
a
|
=3
,
|
→
b
|=4,
|
→
c
|=5
each one of
→
a
,
→
b
&
→
c
is perpendicular to the sum of the remaining then |
→
a
+
→
b
+
→
c
|
is equal to
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