1. The problem statement, all variables and given/known data Does the line through the points (−1, −1, −2) and (1, 2, 1) intersect the unit sphere? If so, find the point(s) of intersection. 2. Relevant equations 3. The attempt at a solution do i also use r = r0 + vt but instead , use equation of sphere this time? so it would be: v=<2,3,3> then using (-1,-1,-2) as the point x = -1 + 2t y = -1 + 3t z=-2 + 3t plugging these into x2 + y2 + z2 = 1 then solve for t but then the math gets way too long and just doesn't seem to be the correct approach.