Question: f(b) Consider AT : R3 - R2. Show that A? is an onto mapping. (c) Find N(A), the nullspace. Find R(AT). (d) Let r E

\f(b) Consider AT : R3 - R2. Show that A? is an onto mapping. (c) Find N(A), the nullspace. Find R(AT). (d) Let r E N(A), y E R(AT), and x + y = Find x, y

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