Question

Describe -A in the addition inverse: A + (-A) = O

Answer 1

@freckles

Answer 2

Like let's think about it
you know 5+(-5)=0

Answer 3

and 5 is the what of -5?

Answer 4

you can can them additive inverses
but there is also another word

Answer 5

The inverse of it

Answer 6

well i was looking for a word that started with opposite

Answer 7

I mean oops o

Answer 8

I didn't want to say the word

Answer 9

lol

Answer 10

inverse or opposite should be the same thing

Answer 11

well not just inverse you would have to say additive inverse

Answer 12

But anyways you know all the elements in -A are the opposites of the entries that correspond to them in matrix A

Answer 13

example \[A=\left[\begin{matrix}5 & 3 \\ -2 & 1\end{matrix}\right] \\ \text{ what is } -A=?\]

Answer 14

-1 is just a scalar
you multiply each entry in A by -1

Answer 15

you will see what I'm talking about

Answer 16

I understand