okay, i dislike linear algebra!!! i hope you guys may help me... hahah.

Let be a basis for the vector space

a) Find corresponding basis of the dual space

b) Find if so that

okay, i have some ideas to do a): put then we have and In the same fashion for and

Now, assume so that and now i must find those and i'll find since this equals ('cause the others are zero), so, is this the procedure?

As for b), no idea. :(