Determine whether L:R^2 -- R^3, L (
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function T:Rn→Rm is called a linear transformation if T satisfies the following two linearity conditions: For any x,y∈Rn and c∈R, we have
T(x+y)=T(x)+T(y)
T(cx)=cT(x)
The nullspace N(T) of a linear transformation T:Rn→Rm is
N(T)={x∈Rn∣T(x)=0m}.
The nullity of T is the dimension of N(T).
The range R(T) of a linear transformation T:Rn→Rm is
R(T)={y∈Rm∣y=T(x) for some x∈Rn}.
The rank of T is the dimension of R(T).
The matrix representation of a linear transformation T:Rn→Rm is an m×n matrix A such that T(x)=Ax for all x∈Rn.
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