| x2 + 3 | ||
f(x) = | ||
| x − 1 |
| x2 + 3 | ||
limx−>−∞ | = −∞ | |
| x − 1 |
| x2 + 3 | 4 | |||
limx−>1− | = [ | ] = −∞ | ||
| x − 1 | 0− |
| x2 + 3 | 4 | |||
limx−>1+ | = [ | ] = +∞ | ||
| x − 1 | 0+ |
| x2 + 3 | ||
limx−>+∞ | = +∞ | |
| x − 1 |
| x2 + 3 |
| ||||||||||||
a = limx−>±∞ | = limx−>±∞ | = 1 | |||||||||||
| x2 − x |
|
| x2 + 3 | x2 + 3 − x2 + x | |||
b = limx−>±∞ ( | − x) = limx−>±∞ | = | ||
| x − 1 | x − 1 |
| x + 3 | ||
= limx−>±∞ | = 1 | |
| x − 1 |