泰勒级数展开,f(x)=f(a)+f'(a)/1!*(x-a)+f''(a)/2!*(x-a)2+...f(n)(a)/n!*(x-a)n+...
sin x = x-x3/3!+x5/5!-...(-1)k-1*x2k-1/(2k-1)!+...(-∞
泰勒级数展开,f(x)=f(a)+f'(a)/1!*(x-a)+f''(a)/2!*(x-a)2+...f(n)(a)/n!*(x-a)n+...
sin x = x-x3/3!+x5/5!-...(-1)k-1*x2k-1/(2k-1)!+...(-∞