1問目
初項1、公比1/3の等比数列の第n項までの和S_nは、
S_n=(3/2)×{1−(1/3)^n}
よって、lim[n→∞]S_n=3/2
2問目
lim[x→2]{√(2x+5)+3}/2{√(x+2)+2}
=3/4
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
1問目
初項1、公比1/3の等比数列の第n項までの和S_nは、
S_n=(3/2)×{1−(1/3)^n}
よって、lim[n→∞]S_n=3/2
2問目
lim[x→2]{√(2x+5)+3}/2{√(x+2)+2}
=3/4
Users viewing this question
are also looking at these questions 😉
![場合の数の問題です。[1][2]を解説して欲しいです🙇♀️
A.(1)7通り(2）1... - 1](https://d1e9oo257tadp1.cloudfront.net/uploads/qa_question_image/file/1805829/thumb_l_webp_0BAB0C10-6CF9-49BE-84FC-5580BA0F894A.webp?Expires=1781180450&Signature=YgTVQS1XkmDa4zyKdtIFx8eGGJ68dtQikCUoxYTCzBW18X0F8cQ2k1tthPPyLooBxzPlAn13XPj3hr8EMM~h-ZisBpKkLfP-1rZdCqAiIAT9J725F-0MgnjBjXS9R6u4uXI0EEHPjEqslofrGP1PzSOBLKlGy7aqFX2ulfomVuSuuQSUVqO5eUDzGYN7j65QJPK-btSff4D6HWuhHWNGHlgU1ZW5ubFVrxU7ioA6kSR1AX7gCJPCt67y6SrNYyCPYX-xRVrA1Trk~hpYoR-nSiNP4Ezu7QsEtVgGjp2fCCqLt5N5CwlxORTOcoEMfkX~I0onfwJplFhYMn3CI5zYXA__&Key-Pair-Id=K2W722D70GJS8W&Expires=1781180450&Signature=aPUB9IT3LX9gWPgN-lM~FmawtOqMyUHP91QMpqZtVvRCeE9Z7-Bv~bkWlsvQuHTiUmyxuIfPdJsiJhBTHeqrEFSZvVq498p0GIbrmYPGpiuJT4qouwfKd8NZXbHiIdt0FrhT-shAMJ8odXmaV7Qrayob4TfgFigU2tJNXPT-fcgych4a70KoZ9PI9EcU5hzB6UIpdInpsQVXxg-68drLk7kOaNiG7N4P4mjV9~3uWN8M~caY5RRItBUhtrmRX1CZR238SkuBByv9c15NT6WvjTP4mrNIZyxX5xhS~JdntbQHlafimM-xX~DhxikZczgGVxFl3u0kwDfdfOrgfjDpBg__&Key-Pair-Id=K2W722D70GJS8W)
ありがとうございます