Solución

a.   $2.2100000$  

b.   $2.0201000$  

c.   $2.0020010$  

d.   $2.0002000$  

e.   $(1.1000000, 2.2100000)$  

f.   $(1.0100000, 2.0201000)$  

g.   $(1.0010000,2.0020010)$  

h.   $(1.0001000, 2.0002000)$  

i.   $2.1000000$  

j.   $2.0100000$  

k.   $2.0010000$  

l.   $2.0001000$