Let b = (3,1, 2, l)7. Find the closest point and the distance from b to the
Question:
(a) The line in the direction (1. 1. 1. I)T,
(b) The plane spanned by (1,1,0,0)T and (0.0, 1, l)T,
(c) The hyperplane spanned by (1,0,0,0)T, (0. 1.0. 0)T, (0, 0, l,0)T,
(d) The hyperplane defined by the equation
x + y + z + w = 0.
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