A square matrix A is called orthogonal if_______ where A’ is the transpose of A.

A square matrix A is called orthogonal if_______ where A’ is the tr

1.	A square matrix A is called orthogonal if_______ where A’ is the transpose of A.
A.	A = A2
B.	A’ = A - 1
C.	A = A - 1
D.	A = A’
Answer» C. A = A - 1