JEE Mains 24-Jan-2023 Shift 2 Solved Paper

Section: Mathematics
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Question : 73 of 90
 
Marks: +1, -0
Let
→
α
=4
^
i
+3
^
j
+5
^
k
and
→
β
=
^
i
+2
^
j
−4
^
k
. Let
→
β
1
be parallel to
→
α
and
→
β
2
be perpendicular to
→
α
. If
→
β
=
→
β
1
+
→
β
2
, then the value of 5
→
β
2
â‹…(
^
i
+
^
j
+
^
k
)
is
[24-Jan-2023 Shift 2]
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