求幂级数∑x^(4n-1)/(4n+1)的和函数,并求所给级数的和

问题描述:

求幂级数∑x^(4n-1)/(4n+1)的和函数,并求所给级数的和

是∑x^((4n-1)/(4n+1))还是∑(x^(4n-1))/(4n+1)