Property
Orthogonal matrices
- the transpose of A
A matrix is orthogonal when its transpose is its inverse. Every rotation matrix is orthogonal, and every orthogonal matrix has determinant plus or minus one.
17
questions use it
8
of them past-year
2017–2025
years it has appeared
18%
rated HARD
2
exams
Used alongside
How often each of these appears in the same solution as this one.
17 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