1、sinx~x、tanx~x、arcsinx~x、arctanx~x、 1-cosx~( 1/2)*(x^2)~secx- 1。

2、(a^x)- 1~x*lna[a^x- 1)/x~lna]。

3、(e^x)- 1~x、ln( 1+x)~x。

4、( 1+Bx)^a- 1~aBx、[( 1+x)^ 1/n]- 1~( 1/n)*x、loga( 1+x)~x/lna、( 1+x)^a- 1~ax(a≠0)。

Infinite application

Infinite or infinite, the mathematical symbol is ∞. It comes from the Latin "infinitas", which means "no boundary". It has different concepts in theology, philosophy, mathematics and daily life. Usually, the use of this word does not involve its more professional definition.

In theology, for example, in the works of theologian Duns Scott, the infinite energy of God is applied to the unconstrained, not the infinite. In philosophy, infinity can be attributed to space and time. In theology and philosophy, infinity is infinity, and many articles have discussed infinity, absoluteness, God and Zeno paradox.