Property
Taking a common factor out of a row
- the common factor
A factor common to every entry of one row or column comes outside the determinant once, which is the single-row version of the scalar rule.
12
questions use it
6
of them past-year
2019–2025
years it has appeared
33%
rated HARD
1
exam
Used alongside
How often each of these appears in the same solution as this one.
12 questions whose solution uses this
Every one was read individually — a question is here because its solution invokes this, not because the stem mentions it.
Every identity this chapter tests, with its own question set.
All Matrices & Determinants formulas