水色マーカー部分が分かりません なぜ虚数のものの1つをωとすると、 １の３乗根が1、ω、ωの2乗になるのですか？？

91. x=1 より, x-1=0, (x-1)(x2+x+1)=0 したがって、x=1, -1 より 13 1±√3i 2 (2) AS 0-1-x tl: 1±√3i 1,0 2 w=1より, (8400 -1+√3i @= -1-√√3 i とすると, w² = ( −1+√3i)² = 2 2 2 VA 2 -1-√3i 2 3i -1+√3i とすると, w ² = ( − 1 = √³i) ² = (6+ @= 2-20 2 (+2+(1S) --2 したがって、1の3乗根のうち虚数のものの1つをとすると,1 の3乗根は, 1, w, w2 と表すことができる。････(*) (1) x3 = 8 より, x3-8=0, (x-2)(x2+2x+4) = 0 よって、x=2, -1±√3iより、8の3乗根は、 2, -1+√3 i 20-(3-²)(1- -³x) ([-x)(1+x) を用いて表すと, 2, 2w, 2w² x3+27=0, (x+3)(x2-3x+9)=0 3±3√3i VICE より, -27の3乗根は, 2 (2) x=-27 より よって, x=-3, ①ωは1の3乗根で, w≠1ょ り, x2+x+1=0 の解。 ②ωと 2 は互いに共役な複素 数となる。 -1+√3i y 3 2 -1-√3i と 2 のどちらをとしても,1の 3乗根は, 1, ww2 と表すこ とができる。 -1+√3 i 4-1+√3 i=2.- 2) 0-1-√√3i-2-1-√3i 2

相加平均・相乗平均の等号成立はどのように求めるのでしょうか？

答え合わせをしたいのですが答えがないので教えてください🙏🙏

たままだった. に走ってきた. → 151 「渋谷で買い物をする」と考える. -関係. るのが見えた. <->152 153 せる)ことができますか. ]つもりです. <<->154 にしておいた. -155 聞こえた.) す。 fixed d my bike repaired. 車を修理してもらった。 -150 the mountain. 3. 各文の( )内の語句を並べかえて, 意味の通る文にしなさい. 1) I (my camera, found, broken). I 2) I (my sister, heard, playing) the piano in her room. I 3) Ted couldn't (understood, in, himself, make) Japanese. Ted couldn't 4) Jane (her, checked, teeth, had) by the dentist. Jane 5) Jim (his, got, caught, hand) in the door. Jim 4. 日本語の意味に合うように( )内に適語を入れなさい. 1) ステージで歌っている少女は私のいとこです. ) ( ) ( 2) スコットはしばらくの間私をロビーで待たせておいた. Scott ( ) ( 3) リサは泣きながら私のところへ来た. Lisa( ) ( 英文を完成しよう! I 彼はたくさんの犬に囲まれて座ってい llow eneoz ar adm to me. (hide) 2 b the piano in her room. Japanese. by the dentist. in the door. noted ) on the stage is my cousin. ) for a while in the lobby. a lot of dogs.

解答お願いします 2枚目の画像を参考にします

cal 50 Work It Out Fill in the blanks with correlative conjunctions. 1 The child wants neither cheesecake 2 Benjamin can ice cream. play basketball and in-line skate well. Prague Square or Charles Bridge. 3 We'll go to 4) I like to watch both action movies romances. She has a desktop nor a laptop. B Read the passage and fill in the blanks with correlative conjunctions. she and I like to eat My best friend Janet and I have a lot in common. pasta. We eat a - pizza nor hamburgers. We like to either sing karaoke go to the movies in our leisure time. We always choose comedy or horror movie to see at the movie theater. We really want to go to Central Park and Times Square during our summer vacation. Because we have so much in common, we've decided to become roommates. Check the correct answers. 1 Either my father or my mother ( is/are ) going to the supermarket. 2 Neither the webcam nor the speakers ( is/are ) broken. 3 Neither Sarah nor 1 (want/ wants) to go shopping with them. Both Spanish and German ( are / is) taught in this high school. 5 Either Sam or his friend ( have / has ) eaten the cake. D Combine the sentences based on the hints given. 1 My roommate doesn't have a notebook. / I don't have a notebook. (neither ... nor ... ) 2 Tom Hanks may be the leading actor of the movie. / Tom Cruise may be the leading actor of the movie. (either ... or...) 3 Paul invited me out for dinner tonight. / Peter also invited me out for dinner tonight. (both ... and ...) UNIT 05 WHAT'S ON YOUR PLAYLIST?

第一次世界大戦から得られた教訓としてどのようなものがあるか教えてください😖

47.50.53.55.56.61のなぜ答えがその番号になるか、日本語訳を教えてほしです！

0 fetchea 6口47. WhaD )me wWas that Jane didn't even say hello when she saw me. O struck Lserike n過E 2 struck at ③ struck on のwould strike 「(慶鷹大) 口48. It's a pity that quite a few Japanese women ((1 ) their jobs when they get married. イドをや。 49. The kids jn the train wěre really noisy. I couldn't ( 0) it. D end up 特 んでんる (2 quit き 3 retire/Apo WitháraM bgeur (センター試験) quit jo6 a 1 stand 2 stay ③ state 4) start ol (産能大) ○口 50. The earthquake created a tremendous sea wave, which soon ( ) the island. O defeated 2 hit ③ broke aO fought (昭和女子大) 35- 口51. Each of the wrestlers ( ③) over 100kg. Dis weigh 2 is weight 3weighs のweights (センター試験) 口52. You should (2 )a dictionary when you are not sure of the meaning of a new word. D consult with 2 consult (ま動3 look up 4 look after one ori, (西南学院大) ので O口 53. I have only five thousand yen to (3)me for the rest of the month. D enable 2 follow no 4 make Hola y (日本大) ior Is S) ③ last 口54. Mother:Jimmy ? Boy: Yes ? Mother: Please ( om 1orh lle ) the front yard before dinner. (1 water 2 put water 3 have water (4 scatter water (青山学院大) OL55. I cannot imagine ( 3) about a book. D you to be so exciting 2 for you to be so excited 3 you being so excited 4 for you to be so exciting (上智大) 0U56. Your quick response to our request would be ()). 0 obliged 2 appreciated ③ thankful の pleased (南山大) 57. I had left a present for her at my house, so she waited for me whileI() )it. 3 lost ② missed の neglected (同志社大) 58. The train was ( (3) ) bya heavy snowfall. O postponed の 3 delayed gur-D adjourned 4% ② cancelled (慶鷹大) 59. The price of the stock ( 0 ) by half in less than a month. ② spoiled のmissed (同志社大) 3 lost eでエれて言ってた昨定 → に合れてだし、 3) attract 0 declined 口60. This work doesn't ( pay ). (1 cost ② deserve の pay (西南学院大) O口61.I wonder what the bill would ( ) to. (2 he 3 bring (4) come (日本大)

展開式において［ ］内に指定された項の係数を求める問題です。 マーカーの部分がわかりません😭 どうやったらその式になるのか教えてください🙇‍♀️

(2) 展開式の一般項は 3D 5Clx)5-1(ーx)%3D,C, x15-3r (-1) x" 5C(x°)5-7-x)3,C, 15-37 (-1)'x =;C,(-1)'x15-2r 15-2r=9 とすると ア=3 よって,求める係数は 5C,×(-1)°=,C。×(-1)° 18 =10×(-1)= -10 0i2131

この（1）を教えてください🙇‍♀️🙇‍♀️

の 35 次の式を因数分解せよ。 *(3) x-2xy+y°-x+y-2 (5) 2x°+xy-?+7x-5y-4

答え教えて欲しいです🙇‍♀️ テストの対策プリントで答えがありません🥺💦

()に入る最も適切なものを選んで, 書きなさい。 Mother: Fred, breakfast is ready. Boy: OK.( [I like cooking. 2 Mother: Is the baseball game on Saturday, Jay? Boy:( [Here you are. 3 Sister: Let's go to the pool, Chris. Brother:( I have a lot of homework. [Sorry, I can't. 4 Teacher: Goodbye, Wendy. Have a nice weekend. Girl: Thank you, Mr. Baker.( [I know. Mother: Pete, do you like the blue shoes? Boy:( [Yes, I play volleyball. No, I like the red ones. 6 Student: When is the test, Mr. Potter? Teacher:( [I'ma math teacher. 2 11 I'm coming You're welcome. It's me.] )It starts at seven o'clock. That's right.] See you. It's fine, へ It's too small. We're at home. That's not yours.] You, too. Next time. To the sea.] 5 Yes, they're very easy. No, they're at school.] )Please study pages 22 to 28. Next Tuesday. Good morning.] See you soon. 3 日本文に合うように,()内を並べ替えなさい。 1夕飯前にはクッキーを食べないで。 before cookies] [eat Don't( dinner 2 エレン,お風呂の時間ですよ。 [for Ellen, ( it's time] your bath 3 職員室はどこですか。 [teacher's room is where the] 4 あれはケンの犬ではありません。 Ken's [is that] not ) dog.

○○に入る語句を教えてください。 これで合っているでしょうか。 ５：D ６：B 7：B 8：A Recently, we opened a new Russian restaurant, "Matreshka" in the city of Kawagoe, Saita... 続きを読む