Answer:
Step-by-step explanation:
Given that A is a square matrix and A is idempotent
Consider I-A
i)
It follows that I-A is also idempotent
ii) Consider the matrix 2A-I
So it follows that 2A-I matrix is its own inverse.
I think it only surrounds 1 meter because it’s a meter long
What is being asked here? Are they asking for the passing grade or the total with all the other 90 points added? I think it is A, 90%