Given l1 : r1(t) = i + tj, l₂ : r2 (u) = j + u(i + j) , find the point where l₁ and l₂ intersect and find the angle
between l₁ and l₂ .
a) Point: (1, -1, 0) , θ = 2π/3
b) Point: (1, 1, 0) , θ = π/3
c) Point: (1, 2, 0) , θ =π/4
d) Point:(1,2, 0) , θ = π/3
e) Point: (1, - 1, 0) , θ = 3π/4