考俩小题math如下计算:当X分别等于1/2004,1/2003,1/2002,1/2001,1/2000,2000,2001,2002,2003,2004时,计算代数式22X/X+1(x方分之x方加1)的值,将结果相加,和为多少?讲解细致者,追50,forthis.

Question

考俩小题 math 如下
计算:当X分别等于1/2004,1/2003,1/2002,1/2001,1/2000,2000,2001,2002,2003,2004时,计算代数式
2 2
X /X +1(x方分之x方加1) 的值,将结果相加,和为多少?
讲解细致者,追50,for this.

Answer 1

x^2/(x^2+1)+(1/x)^2/((1/x)^2+1)=(x^2+1)/(x^2+1)=1
分别带入1/2004,2004.则有五对数,答案为1*5=5