Learning Objectives
By the end of this lesson, students should be able to:
Define a linear map and identify its domain and codomain.
Determine the kernel of a linear transformation.
Determine the range of a linear transformation.
Explain why the kernel and range are vector subspaces.
Calculate the rank and nullity of a linear transformation.
Apply the Rank–Nullity Theorem to analyze the dimensions of vector spaces.


The Domain of T

The Codomain of T

The Kernel of T

The Nullity of T


The Range of T


The Rank of T

Illustration


The Rank-Nullity Theorem


Example 1


Example 2


Example 3


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