Question 25274
Hi,

I don't mind helping you but I'm not going to answer your entire question for you in 'ready to hand in' form. Tell me how far you've got, and where you're stuck and I'll be happy to help out with any specific problems.

To start you off let's look at part a. We need to show that *[tex R\times S] is a ring. For something to be a ring it must be an abelian group under addition, and multiplication must be distributive over addition.

I don't think these are too difficult to show, see how you get on and do get back to me with the bit you are stuck on.

Hope that helps,

Kev