(1)から分かりません。答えを教えていただきたいです。

正の奇数を小さいものから順に並べた数列を,次のように群に分ける。ただし,第n群には(n2-2n+2)個の奇数が 入るものとする。 第群にあるすべての奇数の和をSとする。 13,57, 9, 11, 13, 15 | 17, 19. 21. 23. 25. 27. 29. 31.33.35/37 (1) 第n群の最初の奇数を求めよ。 (2) 数列 {S} の一般項を求めよ。 (3)極限 lim を求めよ。 Sn 5 n→oo n

クラスの前に立って自己紹介をする時talkって言って大丈夫ですか？教えていただけると嬉しいです！！

I will now talk about my dream.

a（b²-c²）+b（c²-a²）+c（a²-b²）の因数分解の仕方を教えてください🙇‍♀️

（a+b+c）（ab+bc+ca）-abcの因数分解の仕方を教えてください🙇‍♀️

3x²+2xy-y²+7x+3y+4の因数分解の仕方を教えてください🙇‍♀️

6x²+7xy+2y²+x-2の因数分解の仕方を教えてください🙇‍♀️

x³+ax²-x²-aの因数分解の仕方を教えてください🙇‍♀️

4x ²-y ²+2y-1の解き方を教えてください🙇‍♀️

数Iで輪番というものがでてきたんですけど、輪番ってなんですか？

He would say that God had given him a tail to keep the flies off, but that he would sooner have had no tail and no flies. soonerは「すぐに」って訳... Read More

2 Animal Farm pig, with a wise and benevolent appearance in spite of the fact that his tushes had never been cut. Before long the other animals began to arrive and make themselves comfortable after Jessie and Pincher, and then the pigs, who settled down in the their different fashions. First came the three dogs, Bluebell, themselves on the window-sills, the pigeons fluttered up to the straw immediately in front of the platform. The hens perched rafters, the sheep and cows lay down behind the pigs and began to chew the cud. The two cart-horses, Boxer and Clover, came in together, walking very slowly and setting down their vast hairy hoofs with great care lest there should be some small animal concealed in the straw. Clover was a stout motherly mare approaching middle life, who had never quite got her figure back after her fourth foal. Boxer was an enormous beast, nearly eighteen hands high, and as strong as any two ordinary horses put together. A white stripe down his nose gave him a somewhat stupid appearance, and in fact he was not of first- rate intelligence, but he was universally respected for his steadi- ness of character and tremendous powers of work. After the horses came Muriel, the white goat, and Benjamin the donkey. Benjamin was the oldest animal on the farm, and the worst tempered. He seldom talked, and when he did it was usually to make some cynical remark - for instance he would say that God had given him a tail to keep the flies off, but that he would sooner have had no tail and no flies. Alone animals on the farm he never laughed. If asked why, he would among the say that he saw nothing to laugh at. Nevertheless, without openly admitting it, he was devoted to Boxer; the two of them usually spent their Sundays together in the small paddock beyond the orchard, grazing side by side and never speaking. The two horses had just lain down when a brood of duck-