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JEE Mains 29-Jan-2023 Shift 2 Solved Paper

Section: Mathematics
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Question : 63 of 90
 
Marks: +1, -0
If
→
a
=
^
i
+2
^
k
,
→
b
=
^
i
+
^
j
+
^
k
,
→
c
=7
^
i
−3
^
k
+4
^
k
→
r
×
→
b
+
→
b
×
→
c
=
→
0
 and
→
r
â‹…
→
a
=0 then
→
r
â‹…
→
c
 is equal to :
[29-Jan-2023 Shift 2]
Validate
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