n을1부터계속대입->1/2+1/4+1/6+1/8+…이런식으로나옴.1/4는1/2보다작고,1/6도1/4보다작고...등등계속1보다약간적은형태로감.그래서결국다더하면1로가까워짐
[무물보AI] 답변 로딩중...