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GUJCET 2022 Math Solved Paper

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Question : 5 of 40
 
Marks: +1, -0
If
→
a
,
→
b
,
→
c
 are unit vectors such that
→
a
+
→
b
+
→
c
=
→
0
 then
→
a
â‹…
→
b
+
→
b
â‹…
→
c
+
→
c
â‹…
→
a
=
Validate
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