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数学 高校生

Kパック模試ですm(_ _)m 1番最後のヌネなんですが、解説(3枚目)の→の置き換えるメリットを教えて頂きたいです🙏 よろしくお願いします。

第4問 選択問題)(配点20) 数列{an}の初項から第n項までの和をS,とおく,つまり Sn=Σanとする。 n k=1 2 数列{an}と{S}は関係式 を満たすとする。 800 23000 a1 = Sn=2n²-an (n = 1, 2, 3, ...) すと ET である。2011.0 Aad である。 ア 0100 00000.0 85000 88000 8000.0 8204.0T800.0 100.0 IT500 SERO.0 200.0 4.0 18061.08851.0 221 6 IS100.0 Sn+1- Sn=an+1 であることに着目することにより, 41 をaとnを用いて表 10. £$15.0, 8808309091o2, 2.80 030102131.0 3.0 0.0 DOLO EEE 0888.0 3088.0 an+1 = Opas oras 0 lappes sasse esss to I Skepa 2 b₁ = aparo a 0 2880.0 230.0 A2 = エオ オ イ ウ JOCUR 17. 2 し、解答しなさい。 750 SS20 PCS ant カ 168.0 C8SE.0 POSE .0 BES8.0 SISE.0 8816.0 128 8.0 2 018361.0 803e to 2880 188.0 BENE. EINE 0 B.T- bn+1 = arab tock. 2.0 Leap 200円 POTS 0 Shas n+ キ DEGE OOREST OLEMA SOSTE 1870. BOTE 0 LU いま,数列{bn} を数列{an}の階差数列とする,つまり bn=an+1-aro Saf 1.08.1- (n = 1, 2, 3, ...) 3.FI 0020.0 58000 800 erer' 'COCA O Sessers.o aos resto desh.0 SSS 0 TOST O ス 50CCP ク サ 110370 0805 001250188 000 SEED 0.1 SEDA.0 ケ haar o 63.00 E90.0 8804.08T8A.OITOP.0 F000.0 0300.0 18.0 18.0 8.1 TATE.0 18.0 82.0 D2TA.0 ATA.0 88.0 SETA.0 8STA.0 C10 KITA 2001 (数学ⅡⅠ・数学B 第4問は次ページに続く。) CRD OFEO EDENO bn+ シ 0 CON

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英語 高校生

この問題分かる方がいましたら答えを教えて頂きたいです🙇🏻‍♀️

1 Choose the best answer to fill in the blanks. (1) (1) ( 1 Do you know is who 3 Who do you know is ) the editor of this magazine? (2) Please keep your eyes ( 1 close (4) There is not much hope ( (1) as 2 how (5) The language ( 1 speaking (6) He ( 1 should (3) One of the twins lives in Tokyo, but (din) lives in New York. 1 another 3 the other 4 the others If Id 2 other 2 closing (7) It will not be long ( 1 before (10) James found ( 1 him (14) ( ) be sick. I just saw him playing soccer. 2 may 3 can't 2 on ) in the province is Arabic. 2 speak 3 spoke 2 Do you know who is Who is do you know More \ - \ ) until I tell you to open them. 3 closed (11) They suggested that he ( 1 come 2 comes 1 How about (13) You will miss the train ( 1 if ) they are still alive. 3 that (9) There are many books worth ( ) more than once. read 2 to read 3 reading ) we meet again. during (8) Tom may not have studied ( ) to pass the entrance examination. enough hard 3 hard enough 4 hard as as hard (12) Hurry up! Our bus is leaving ( I till 2 on without 3 above ) to the meeting. 3 came 4 to close ) difficult to write down foreign names. 2 himself 3 it 4 them MAE ) a few minutes. 3 during 4 which ) take the train instead of the bus? It's faster. Let's 3 Why don't 4 spoken 4 won't ) you walk more quickly. 3 unless 4 to be read 4 had come 4 in 4 but for 4 Why not

解決済み 回答数: 1