Question

Please answer this question 20 quickly.

Answer 1

Answer:

Option A) is the correct answer of question 20.

Answer 2

Answer:

(c) A=O and B=O

Step-by-step explanation:

Showing AB=0 does not imply either A,B=0, but that singular. show that AB=0 does not imply that either A or B is the zero matrix, but that it does imply that at least one of them is singular. But AB is a zero matrix, so A=B=0. Thus proven that the initial assumption A,B are non-singular is false.