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JEE Mains 27-July-2022 Shift 1 Solved Paper

Section: Mathematics
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Question : 12 of 90
 
Marks: +1, -0
Let
→
a
=α
^
i
+
^
j
+β
^
k
 and
→
b
=3
^
i
−5
^
j
+4
^
k
 be two vectors, such that
→
a
×
→
b
=−
^
i
+9
^
i
+12
^
k
. Then the projection of
→
b
−2
→
a
 on
→
b
+
→
a
 is equal to
[27-Jul-2022-Shift-1]
Validate
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