Question

Can someone confirm if my answers are right?

True or False ? Let A, B, C be n x n matrices.

T a) If C is nonsingular and AC = CB , then A = B.
F b) If AC = BC, then A = B.
T c) If A and B are invertible, the AB is also invertible.
F d) If A2+ AB = I, then A is singular.

Answer 1

u from connexus?

Answer 2

9th grade math?

Answer 3

unit 5?

Answer 4

a) F

Answer 5

b) T

Answer 6

c,d ok

Answer 7

CHEATA