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JEE Main 8 Apr 2024 Shift 1 Solved Paper

Section: Mathematics
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Question : 18 of 90
 
Marks: +1, -0
The set of all α, for which the vector
→
a
=αt
^
i
+6
^
j
−3
^
k
‌‌ and
→
b
=t
^
i
−2
^
j
−2αt
^
k
‌‌ are inclined at an obtuse angle for all t∈ℝ is :
[8 Apr 2024 Shift 1]
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