1. ## Megsss Student

Hi! I'm a 6th grade megsss student and I really don't understand a part of my homework. It asks us to determine which has a neutral element. For those that do, tell if it's invertible. here's an example:

a) (W,+)

They also want us to ( for the elements that are invertible ) to determine which has more than one inverse. plz people i need an answer!!!!!!!!!!!!!!!!!!!

2. Originally Posted by ~*GoGreenIsTheWord*~1996
Hi! I'm a 6th grade megsss student and I really don't understand a part of my homework. It asks us to determine which has a neutral element. For those that do, tell if it's invertible. here's an example:

a) (W,+)

They also want us to ( for the elements that are invertible ) to determine which has more than one inverse. plz people i need an answer!!!!!!!!!!!!!!!!!!!
I can steer you to a discussion of the identity (neurtal element) of your set W with respect to the binary operator *. All you need to do is change the binary operator to +.

Identity element - Wikipedia, the free encyclopedia

This next discussion should help you determine which has more than one inverse and therefore, invertible.

Inverse element - Wikipedia, the free encyclopedia

I hope this helps.