KCET 2006 Math Solved Paper

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Question : 19 of 60
 
Marks: +1, -0
If ˙
→
a
and
→
b
are the two vectors such that |
→
a
|
=3√3
,
|
→
b
|=4
and |
→
a
+
→
b
|
=√7
, then the angle between
→
a
and
→
b
is
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