| \( \sin x \sim x \) при \( x \to 0 \) |
| \( \operatorname{tg} x \sim x \) при \( x \to 0 \) |
| \( 1 - \cos x \sim \dfrac{x^2}{2} \) при \( x \to 0 \) |
| \( e^x - 1 \sim x \) при \( x \to 0 \) |
| \( \ln(1 + x) \sim x \) при \( x \to 0 \) |
| \( (1 + x)^n - 1 \sim nx \) при \( x \to 0 \) |
| \( \arcsin x \sim x \) при \( x \to 0 \) |
| \( \operatorname{arctg} x \sim x \) при \( x \to 0 \) |