Question

What is the Zero Strategy for expansion of a determinant?

Options

• Expand along the row or column with no zeros.

• Delete every row and column containing a zero.

• Expand along the row or column with most zeros.

• Replace each zero with \[1\] before expanding.

Answer 1

A term multiplied by zero contributes zero to the expansion. Selecting the row or column with most zeros therefore makes the computation shorter.