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Vector Algebra Part 1

Section: Mathematics
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Question : 54 of 100
 
Marks: +1, -0
Let
→
u
 be a vector coplanar with the vector
→
a
=2
∧
i
+3
∧
j
−
∧
k
 and
→
b
=
∧
j
+
∧
k
.If
→
u
 is perpendicular to
→
a
 and
→
u
.
→
b
,then |
→
u
| is equal to:
[Main 8 April 2018]
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