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JEE Main 23 Jan 2026 Shift 2 Paper Solved Paper

Section: Mathematics
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Question : 21 of 75
 
Marks: +1, -0
If the image of the point P(a,2,a) in the line ‌
x
2
=‌
y+a
1
=‌
z
1
 is Q and the image of Q in the line ‌
x−2b
2
=‌
y−a
1
=‌
z+2b
−5
 is P , then a+b is equal to ____。
[23 jan 2026 Shift 2]
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