Equation of line L1 passing through (0,−1,0) and with direction ratio (1,1,1) is ‌
x
1
=‌
y+1
1
=‌
z
1
∴‌‌A(x,y,z)≡(λ,λ−1,λ) A line intersect A(x,y,z) and B(1,1,1)∴ direction ratio of AB (λ−1,λ−2,λ−1) Given direction ratio of line intersect AB is 2,1,2