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Vector Algebra Part 1

Section: Mathematics
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Question : 1 of 100
 
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If the shortest distance between the lines
→
r
1=α
^
i
+2
^
j
+2
^
k
+λ(
^
i
−2
^
j
+2
^
k
), λ∈R,α>0and overrightarrow‌mathrm‌r2=−4
^
i
−
^
k
+µ(3
^
i
−2
^
j
−2
^
k
),µ∈R is 9, thenα is equal to ________.
[20 Jul 2021 Shift 1]
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