AIEEE 2002 Math Solved Paper

Section: Mathematics
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Question : 54 of 74
 
Marks: +1, -0
If
→
a
,
→
b
,
→
c
are vectors show that
→
a
+
→
b
+
→
c
=0
and |
→
a
|
=7
,
|
→
b
|=5,
|
→
c
|=3
then angle between vector
→
b
and
→
c
is
[AIEEE 2002]
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