11. lim (1-x) = -2
x-9
13. lim x = a
15. lim x² = 0
X-0
17. lim (x² - 4x + 5) = 1
ing the ɛ, o de
12. lim
ust
14. lim c
16. lim r
X-0
18. lim (2
X->-2
19. Verify that another possible choice of 8 fo
lim¸→3 x² = 9 in Example 3 is 8 = min{:
20. Verify, by a geometric argument, that the
choice of 8 for showing that lim,3x²
