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LIMITI NOTEVOLI<br />
1.<br />
2.<br />
3.<br />
+ ∞ → a > 1<br />
lim a =<br />
→+∞ 0 → 0 < a < 1<br />
x<br />
x<br />
0 → a > 1<br />
lim a =<br />
→−∞ + ∞ → 0 < a < 1<br />
x<br />
x<br />
+ ∞ → b > 0<br />
lim x =<br />
→+∞ 0 → b < 0<br />
b<br />
x<br />
4. lim log(<br />
x)<br />
= +∞<br />
x→+∞<br />
5. lim log(<br />
x)<br />
= −∞<br />
6.<br />
+<br />
x→0<br />
log<br />
x<br />
lim<br />
x→+∞<br />
b<br />
( x)<br />
= 0<br />
( b > 0)<br />
7. lim x log(<br />
x)<br />
= 0 ( b > 0)<br />
b<br />
8.<br />
+<br />
x→0<br />
lim<br />
x→+∞<br />
lim<br />
x→−∞<br />
x<br />
a<br />
a<br />
x<br />
b<br />
x<br />
x<br />
b<br />
= 0<br />
= 0<br />
x<br />
9. lim x ⋅ e = 0<br />
x→−∞<br />
1<br />
10. lim 1+<br />
= e<br />
x→±∞<br />
x<br />
11.<br />
lim<br />
sen<br />
x→0<br />
x<br />
x<br />
( x)<br />
= 1<br />
( a > 1,<br />
b > 0)<br />
x x0<br />
12. lim a = a ( a > 0)<br />
x→x<br />
0<br />
b<br />
13. lim x = x ( x > 0)<br />
b<br />
x→x<br />
0<br />
0<br />
14. log(<br />
x)<br />
= log(<br />
x ) ( x > 0)<br />
lim<br />
x→x0<br />
15. sen(<br />
x)<br />
= sen(<br />
x )<br />
lim<br />
x→x0<br />
16. cos(<br />
x)<br />
= cos(<br />
x )<br />
17.<br />
18.<br />
lim<br />
x→x0<br />
log<br />
a<br />
lim<br />
x→+∞<br />
x<br />
x→±∞<br />
( x)<br />
= 0<br />
b<br />
lim 1+<br />
= e<br />
x<br />
x<br />
b<br />
0<br />
0<br />
0<br />
0<br />
( a > 1)<br />
0<br />
19.<br />
log<br />
x<br />
lim<br />
x→0<br />
b<br />
( x)<br />
x<br />
a −1<br />
x<br />
= 0<br />
20. lim = log(<br />
a)<br />
x→0<br />
21. lim tg(<br />
x)<br />
π<br />
x→−<br />
2<br />
22. lim tg(<br />
x)<br />
x→ 2<br />
π<br />
−<br />
+<br />
= −∞<br />
= +∞<br />
23. lim arctg(<br />
x)<br />
x→−∞<br />
24. lim arctg(<br />
x)<br />
x→+∞<br />
=<br />
=<br />
π<br />
−<br />
2<br />
π<br />
2<br />
25. lim ctg(<br />
x)<br />
= +∞<br />
+<br />
x→<br />
0<br />
26. lim ctg(<br />
x)<br />
= −∞<br />
−<br />
x→<br />
π<br />
27. lim arcctg(<br />
x)<br />
= π<br />
x→−∞<br />
28. lim arcctg(<br />
x)<br />
= 0<br />
x→+∞<br />
n 29. lim n = 1<br />
n→+∞<br />
n<br />
30. lim = e<br />
n→+∞<br />
n n!<br />
31.<br />
32.<br />
33.<br />
lim<br />
→ 0<br />
+<br />
x<br />
lim<br />
x<br />
−log<br />
log<br />
( x)<br />
= 0<br />
( 1+<br />
x)<br />
( )<br />
+<br />
x→0<br />
log x<br />
lim<br />
+<br />
x→0<br />
xlog<br />
x = 0<br />
= 0<br />
34. lim x − log(<br />
1 + t)<br />
x→0<br />
35. lim<br />
( x,<br />
y ) →(<br />
0,<br />
0)<br />
36. lim y<br />
( x,<br />
y ) →(<br />
0,<br />
0)<br />
37.<br />
lim<br />
x→x0<br />
f<br />
g<br />
( x)<br />
( x)<br />
x log<br />
x<br />
( y)<br />
( b > 0)<br />
= 0<br />
= non ∃<br />
= non ∃<br />
⎯⎯<br />
⎯ →0<br />
ord. =<br />
⎯ ⎯⎯ →0<br />
ord. β<br />
α o<br />
l →α<br />
= β<br />
→α<br />
> β<br />
∞ →α<br />
> β