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JEE Main 26-Aug-2021 Shift 2 Solved Paper

Section: Mathematics
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Question : 83 of 90
 
Marks: +1, -0
If the projection of the vector
^
i
+2
^
j
+
^
k
 on the sum of the two vectors 2
^
i
+4
^
j
−5
^
k
 and −λ
^
i
+2
^
j
+3
^
k
 is 1, then λ is equal to
[26 Aug 2021 Shift 2]
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