Problem :
If
what is
(x, y, z)
(x, y, z) = (- 2, - 8, 7)
Problem :
If AI = A, and A is a 4×6 matrix, what are the dimensions
of I?
6×6
Problem :
If IA = A, and A is a 4×6 matrix, what are the dimensions
of I?
4×4
Problem :
Is there a matrix B such that BB = B?
Yes,
B = I.