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Vector Algebra

Section: Mathematics
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Question : 27 of 38
 
Marks: +1, -0
Let
→
a
 = −
^
i
−
^
k
 ,
→
b
 = −
^
i
+
^
j
 and
→
c
 =
^
i
+2
^
j
+3
^
k
 be three given vectors. If
→
r
 is a vector such that
→
r
×
→
b
 =
→
c
×
→
b
 and
→
r
.
→
a
 = 0, then the value of
→
r
.
→
b
 is ____.
[JEE Adv 2011 P2]
  • Your Answer:
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