1. What would be the definition, in terms of functions, of a sequence of complex terms? Of a sequence of real 2X2 matrices? 2. Use the sandwich theorem to show that lim n sin () = ? (you need to identify ?) n0 3. Prove, using the definition, that 5n+ 4n+ 40 noon50n - 20 4. Repeat #3 using theorems about limits of sums/quotients etc. lim = 5