答えが掲載されておらず、添削が出来ない状態です😭恐れ入りますが、答えを教えてくださると幸いです🙇‍♂️

練習 (1) は整数とする。la2+62 が奇数ならば, a, bの少なくとも一方は奇数であることを 9 証明せよ。 [類 法政大 〕 (2)10が無理数であることを用いて, 5-√2 が無理数であることを証明せよ。 [北海学園大〕

見にくくてすみません(>_<) 数1ので因数分解する問題が分からないので何方か 教えていただきたいです🙇‍♂️

(4) 4x²(3y+2)-9y² (z+2x)+z² (2x-3y) -(22

数3の問題です。 どうして赤線のようになるのかわかりません。 教えてください🙇‍♀️

1 cos²x + Cos²x よって 与式= x = {{ cos² x 1 (cosx) dx cos²x 1 = tan x+ +C COS X dx 225 (1) xvx = ecosts sinxdx=|(–e*'sinxdz (2) [e-*sinxdx=| ==e-*sinx+\e *cosxdx =xlog x)3- (1) 1 x =-e-sinx+(-e-cosxdz fit axe =-e *sin x-ecosx よって √√x+1+√√x -dx - = √(√x+1+√x)dx 2 == }}|{(x+1)√x+1+x√x}+C (2) √√√√3x+4-2 -dx x√3x+4+2) 131=1nia (D) ASS (√√3x+4-2)√3x+4+2) == √(√3x + 4 + 2)dx 2 = 27 -dx d (3x+4)√3x+4+3x+Ciel 201 |e-sinxdx= 1 x x-Sesinti [log Se² dx = [1 1 x e+1 dy 1-y = == 2 e-*(sin x+cos Sã *$200- sin 0 d0= (3) sin (log x)dx=(x)'sin (log x)dx =xsin (log x) = cos(log x)dx - =xsin (log x)-(x)'cos (log x)dx =xsin (log x) - xcos(log x)-sin(log よって 2 1 201 = sin (log x)dx x(sin (log x) - cos(logx)}+C - 0 cost dt dx COS² x S'e ³ ³ dx= √² 3* dx=

この( )に当てはまるものを教えて下さい🙏分かるものだけで構わないので助けてください😭お願いします。良かったら答えの意味も教えて下さい。

(1) My daughter will spend a few years in New York. Her main ( is to study Broadway musicals there. ) for going 1 behavior 2 reason 3 accident 4 subject (2) A: Did you ( ) Jane's new boyfriend? B: Yes, I was surprised that he is so handsome. 1 acquire propose 3 bring 4 notice (3) A: Does Japanese food suit your ( B: Yes, very much. I really love it. )? 1 lips 2 dish 3 taste 4 spirit (4) A: I think that this plan will be successful. B: I don't want to ( 1 argue 2 insist ) with you, but I'm sure it won't. 3 demand 4 hope (5) A: Where do you want to go tomorrow, Dean? B: How about the beach? The roads won't be too crowded if we leave ( ). 1 early 2 quickly 3 fast (6) Since the ( 4 speedy ) of China is so large, Chinese is spoken by more people than any other language. 1 people 2 population 3 number (7) A: I'm very sorry I have not written to you for so long. B: I'm sorry, too. I want to ( (8) (9) 1 save 2 introduce 4 nation ) to you for getting so angry. 3 apologize 4 understand ) to the crop. 3 harm 4 loss We hoped the typhoon would not do any ( 1 pain 2 accident A: What about your schedule for this week? B: It's very ( ). 1 tight 2 small 3 close 4 strict

【至急！】①、②答え教えて欲しいです。

D ⑤ STUBY ITS Mr. Brown: Next question. I wonder if you know the phrase "pie in the sky." Moe: No. Please give us an example. Mr. Brown: Certainly. If I say I want to build a time machine, it's "pie in the sky." Kai: Do you mean your plan is really difficult? Mr. Brown: That's right! Moe: It sounds like "a rice cake in a painting" in Japanese. Kai: You can't eat it. Mr. Brown: There's probably no chance? I see.

高校の教科書の問題です。今度テストに出るところなので答えを教えて欲しいです！

Vocabulary 10 Compound nouns 1 Write a word to make three compound nouns. mail 1 business fire man 2 Write a compound noun from Exercise 1. ESSO 2 pop 3 rock 4 ache lights 2 1 gas station phones movie break 3 beans shop return 5 parking single 6 cut 5 6 brush salon for a headache gas 7 train 8 bus cook 9 text note 10 set glasses screen light cop jam 70 Unit 10 Our interactive world 7 8 3 Answer the questions using a compound noun. 1 When do people take aspirin? 2 If you want a recipe, where do you look? 3 Who delivers the mail to your house? 4 If you park in the wrong place, what might you get? 5 What should you put on your skin before you sunbathe? 6 What can you watch at the end of the day? 7 What must you switch on when you are driving at night? 8. Where can you get gas?

62です。 外積を利用して解く方法が分からないので、教えていただけると嬉しいです💧‬

62 62 (1)a= (2,3,-1), 6 = (-1, 2, -3) a = a= (21,3)=(-1, 3, 2) の両方に直交する単位ベクトルを求めよ. 正四面体 OABCについて 底面△ABCの重心をG とする.A.B.Cの位

4番と5番の並べ替えがわかりません。回答よろしくお願いします

to him." Juoria ter without the game/advice / advice)." "Yes. We should be gratefu de agleis to teoo ripirt 4. “I don't have much leisure time. (more/ would / with / I / time,) read novels." game addi 5. I like her paintings very much; otherwise (would/I/have/ / one / not / bought). 13 ペアになって、次の質問を暴れ合いましょう 追加の明太」て会話を結けてトリ

宋書倭国伝の「使持節都督府・百済・新羅・任那・加羅・秦韓・慕韓七国諸軍事安東大将軍倭国王」はどういう意味ですか？ あと、慕韓が後に百済、秦韓が後に新羅になるという解釈で合ってますか？

教えて欲しいです(;;)🙏

O 2) 次の文に合う英文になるように、空所をうめなさい。(3点引) ① 原子爆弾が私を孤児にしました。 The atomic made an orphan. ② 彼は(彼の) 家族から離れてひとりで住んでいました。 He alone away ③ 彼女は何も言わずに出て行きました。 She went out saying ※ without ~ing 「~せずに」 his family.