Let G be the group of invertible upper triangular 2x2 matrices over the real numbers. Determine if the following are normal subgroups and if they are use the frist isomorphism theorem to identify the quetient group G/H.

where H is

a)

b)

I have checked (hopefully correctly) that these are both normal subgroup (via ) However I am unsure as to what the next part is actually asking me?

Thanks for any help