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JEE Mains 27-July-2022 Shift 1 Solved Paper

Section: Mathematics
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Question : 13 of 90
 
Marks: +1, -0
Let
→
a
=2
^
i
−
^
j
+5
^
k
 and
→
b
=α
^
i
+β
^
j
+2
^
k
. If ((
→
a
×
→
b
)×
^
i
)â‹…
^
k
=‌
23
2
, then |
→
b
×2
^
j
| is equal to
[27-Jul-2022-Shift-1]
Validate
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