Fter 3.1) Assume T : R m → R n is a linear transformation. (a) Suppose there is a nonzero vector x ∈ R m such that T(x) = 0. Is it possible that T is one-to-one? Give an example, or explain why it’s not possible. (b) Suppose there is a nonzero vector x ∈ R m such that T(x) = 0. Is it possible that T is onto? Giv