Math Doubts

Limits rules at infinity

Fact-checked:

Algebraic functions

$\displaystyle \large \lim_{x\,\to\,\pm\infty}{\normalsize \dfrac{1}{x}}$ $\,=\,$ $0$

Exponential functions

$\displaystyle \large \lim_{x\,\to\,+\infty}{\normalsize e^x}$ $\,=\,$ $\infty$

$\displaystyle \large \lim_{x\,\to\,-\infty}{\normalsize e^x}$ $\,=\,$ $0$

$\displaystyle \large \lim_{x\,\to\,\pm\infty}{\normalsize \bigg(1+\dfrac{1}{\displaystyle x}\bigg)^x}$ $\,=\,$ $e$

Trigonometric functions

$\displaystyle \large \lim_{x\,\to\,\pm \infty}{\normalsize \dfrac{\sin{x}}{x}}$ $\,=\,$ $0$

Ashok Kumar B.E. - Founder of Math Doubts

Ashok Kumar, B.E.

Founder of Math Doubts

A Specialist in Mathematics, Physics, and Engineering with 14 years of experience helping students master complex concepts from basics to advanced levels with clarity and precision.