MathematicsMedium249×since 2002Q2522If the mirror image of the point P(3,4,9)P(3,4,9)P(3,4,9) in the line x−13=y+12=z−21\frac{x-1}{3}=\frac{y+1}{2}=\frac{z-2}{1}3x−1=2y+1=1z−2 is (α,β,γ)(\alpha, \beta, \gamma)(α,β,γ), then 14 (α+β+γ)(\alpha+\beta+\gamma)(α+β+γ) is :A102B138C132D108Check answerSkip