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(a) Find an equation of the plane that passes through the points
A(2,1), B(-1,-1,10), and C(1,3-4) .
(b) Find symmetric equations for the line through B that is perpendicular to the plane in part (a).
(c) A second plane passes through (2,0,4) and has a normal vector (2,4-3). Show that the acute angle between the planes is approximately 43o.
(d) Find parametric equations for the line of intersection of the two planes.
A(2,1,1), B(-1,-1,10), and C(1,3-4) .