KEAM 2022 Math Solved Paper

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Question : 3 of 120
 
Marks: +1, -0
If θ is angle between the lines ‌
x
1
=‌
y+1
2
=‌
z−1
3
and ‌
x+1
3
=‌
y
2
=‌
z
1
, then cos‌θ=
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