Solución

a.   $−0.80000000$  

b.   $ −0.98000000$  

c.   $−0.99800000$  

d.   $−0.99980000$  

e.   $−1.2000000$  

f.   $−1.0200000$  

g.   $ −1.0020000$  

h.   $−1.0002000$  $\mathop {\lim }\limits_{x \to 1} \left( {1 - 2x} \right) = - 1$