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3 cards from this section. Quick, good the night before a test.
What is the definition of rank in a matrix?
Consider what it means for rows or columns to be independent.
If a matrix has rank 0, what does it imply?
Think about what it means when there are no independent rows.
What is true if rank(A) = rank([A|B])?
Think about what consistency of a system means.
True or False: A matrix with rank equal to the number of variables always has a unique solution.
Remember the relationship between rank and solutions.
Given a system of equations derived from a real-world engineering scenario, determine the ranks of the relevant matrices and analyze the results to conclude if the system is consistent and the type of solutions.
Utilize the relationships between rank and solutions we've discussed.
In a project involving multiple constraints in structural design, assess how the rank of associated matrices affects potential designs. Suggest adjustments if the designs are determined to be indeterminate.
Think about what additional constraints can improve design stability.
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