求S=√1+1/12+1/22+√1+1/22+1/32+√1+1/32+1/42+...+√1+1/99²+1/100²的值

题目

求S=√1+1/12+1/22+√1+1/22+1/32+√1+1/32+1/42+...+√1+1/99²+1/100²的值
“2”代表的是平方哟

答案

S=√(1+1/1²+1/2²)+√(1+1/2²+1/3²)+√(1+1/3²+1/4²)+...+√(1+1/99²+1/100²)通项an=√[1+1/n²+1/(n+1)²]          =√{[(n+1)²n...