Given ~v1 = h1,3,4i and ~v2 = h⇡,e,7i, find
(a) the distance from v1 to v2, (b) v1 · v2 and v1 ⇥ v2,
(c) the (parametric) equation for a line through the points (1, 3, 4) and (⇡, e, 7),
(d) thee quation for the plane containing the points(1,3,4),(⇡,e,7) and the origin.