Let a, b \in R. If the mirror image of the point P(a, 6,9) with respect to the line \frac{x-3}{7}=\frac{y-2}{5}=\frac{z-1}{-9} is (20, b,-a-9), then |a+b| is equal to [24 Feb 2021 Shift 2]

JEE Main 24 Feb 2021 Shift 2 Solved Paper

Section: Mathematics

Question : 62 of 90

Marks: +1, -0

Let a,b∈R. If the mirror image of the point P(a,6,9) with respect to the line ‌

x−3

=‌

y−2

=‌

z−1

−9

is (20,b,−a−9), then |a+b| is equal to

[24 Feb 2021 Shift 2]

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