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JEE Advanced Model Paper 5 with solutions for online practice

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Question : 44 of 54
 
Marks: +1, -0
If
→
a
 ,
→
b
 and
→
c
 are vectors such that |
→
a
| = 3 , |
→
b
| = 4 and |
→
c
| = 5 and (
→
a
+
→
b
) is perpendicular to
→
c
 , (
→
b
+
→
c
) is perpendicular to
→
a
 and (
→
c
+
→
a
) is perpendicular to
→
b
 , then the value of
1
√2
 |
→
a
+
→
b
+
→
c
| is equal to
  • Your Answer:
Validate
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