数2の青チャートの問題です。(5)の問題でなぜP(-1/3)とすぐにわかるんですか教えてください🙏

2=6+2ai a, bは実数であるから よって -1023=b,32=2a a=16,b=-1023 したがって, 求める余りは16-1023 ←左辺と右辺で P(x) を 虚部をそれぞれ である P(x 1- x= 練習 次の式を因数分解せよ。 ②58(1)xx2-4 (4) x4-2x-x2-4x-6 (2) 2x3-5x2-x+6 (5) 12x3-5x2+1 (3) x²-4x+3 [別解 与式をP(x) とする。 よ 組立除法。 (2) P(-1)=2(-1)-5(−1)-(−1)+6=0であるから,P(x) は x+1を因数にもつ。 (1) P(2)=2°-22-4=0であるから,P(x) は x-2を因数にもつ。 よって P(x)=(x-2)(x²+x+2) +(+2) (12) -1 0 7 2 2 1 1 2 2 -5 -1 よって P(x)=(x+1)(2x2-7x+6) -2 74 2 -7 =(x+1)(x-2)(2x-3) 6 練習 (3) P(1)=0であるから, P (x) は x-1 を因数にもつ。 ゆえに P(x)=(x-1)(x+x²+x-3) 60 1 1 0 1 1 また, Q(x)=x3+x2+x-3 とすると Q(1)=0 よって, Q(x) は x-1 を因数にもつ。 11 0-4 1 1-(1) 1-3 す 23 1 2 30 ゆえに Q(x)=(x-1)(x+2x+3) したがって P(x)=(x-1)(x'+2x+3) (2) (4) P(-1)=0であるから, P(x) は x+1を因数にもつ。 ゆえに P(x)=(x+1)(x-3x2+2x-6) 1-2-1-4- -1 3-2 また, Q(x)=x-3x2+2x-6 とすると よって, Q(x)はx-3を因数にもつ。 Q(3)=0 ゆえに Q(x)=(x-3)(x2+2) 1-3 3 20 2-6 6 1 02 0 したがって P(x)=(x+1)(x-3)(x+2) (5) P(-1/2)=0であるから,P(x)はx+1/3を因数にもつ。 よってP(x)=(x+1/32) (12x-9 -9x+3) =(3x+1)(4x²-3x+1) 12 -5 0 1 -4 3-1 12 -9 3 0 1の値を求めよ。 (3

数学Ⅱ　複素数 この式の解き方と、規則性を教えてください🙏

√3 + 2 √3 (1) + i の累乗について計算しなさい。 213 t 71 3 + 2 4 4 2 +2√3 21 4 4 4k 2 + 2 (+) (4) (5) (+ √3 √3 (2+塗 (6) 2 + √3

vision questⅡ English expression hope70ページ preview 1.date&time 2.numbers(sizes,measurements,etc) 3.prices&Phone numbers listening task 1.... 続きを読む

140 // TIT Activity for Communication 3 Preview Listen to the sentences below. 1 Dates & Times Listening for Numbers the on Enio 1. "The movie starts at 5:20. Can you be ready in ten minutes?" "OK. I'll try." 2. "What time is it now?" "It's 11:30." basalaila awohlsw 3. I have an appointment with the dentist this Thursday, the 10th. M 4. "When does school begin?" "It begins on April 8th." 5. Our school was established in 1965. 6. My family has lived in this town since 2005. 2 Numbers (sizes, measurements, etc.) 1. Two thirds of the students come to school by bus. 2. One mile is about 1,609 meters. 3. The city has a population of about 2.5 million. 4. The temperature dropped to 12°C. 5. APA Air Flight 125 for London will be departing from Gate 14 at 10:15. 3 Prices & Phone numbers 1. The price of this bag is $27.89, but you can have it at 10 percent off. 2. What would you do if you won 100 million yen in a lottery? 3. "A hamburger and a cola, please." "That'll be £2.99." 4. I need €20, but I'm €5 short. 5. My phone number is 612-750-5613. Listening Task Listen to the conversations and choose the correct answers. 1. How much of the earth's surface is covered by ocean? 1 more than one third more than one fourth 監督署 ER 70 3 more than two thirds 4 more than two fifths 2. When were the Olympic Games held in Atlanta? 1 in 1966 2 in 1969 3. How much did the dress cost? 1,100 yen 2 1,800 yen 3 in 1996 4 in 1999 S 8,000 yen ③ 13,000 48,800 yen bluros ④ 30,000 about 200,000 4. How many people can the concert hall hold? ① 1,300 ② 3,000 5. How many people live in the city? ①about 2,000 2 about 12,000 3 about 20,000 ① 207-7300 2207-7003 ③ 702-3300 6. What's the phone number of the restaurant? The number is 510- ④ 702-3003

答え教えてください🥲🙏🏻

1 不定詞 名詞的用法「~すること」、形容詞的用法 「~するための」、副詞的用法 「~するために」 など。 1 To know her is to love her. <> 2 My dream is to be a scientist. <> 3 They wanted to give me a chance. <)(p.14) 4 Since these words are written in katakana, it is easy for me to recognize them. <)(p.10) 5 They gave me a chance to enjoy some Western food. ()(p.14) 6 Where should I go to buy a dress shirt? <>(p.12) 7 He was surprised to hear the news of the accident. muy 8 She told us not to eat junk food. <) Exercises 1 Fill in the blanks with suitable words from the list. Change the word form, if necessary. 1. A: Why is she working so much these days? B: Because she wants to save money 2. A: You go to a gym, don't you? B: Yes. I've decided 3. A: You look happy. What happened? B: My parents finally agreed 4. A: It's too hot here and I don't feel well. B: Maybe you need something 5. A: Hi, Mary! bus zining boo abroad. nidT a marathon race this year. a dog as a pet! B: Oh, David! I'm glad 6. A: Oh, look at the cute baby! B: Shh. Be careful not you. www.dailpras her up. [ run / wake / travel / get / see / drink ] 2 Complete the sentences with your own ideas. 1. I've decided to 2. I'm planning to 3. I was lucky to IST

右側のまるのところが分かりません。なぜ余りを割った時余りに等しくなるんですか？

8 多項式Pを(x+1)^ で割った余りは9であり, (x-1)^33 ✓で割った余りは1である。 Pを(x+1)^(x-1)2で割っ た余りを求めよ。 B 求める余りをRとする と, R を(x+1)2で割っ た余りは9, (x-1)2 で 割った余りは 1である。 品 式と証明

近く動詞の場合は時制の一致は働かないのですか。 もしそうならなぜですか

o ano non exome 5 Correct the errors in the following sentences. I saw a little black cat crossed the road from left to right. adquoo idait

この問題わかる方教えて欲しいです、。

[3] 3次方程式 x+ax°+bx-12=0 の1つの解が1+ V2i であるとき、 実 数a,bの値と残りの解を求めよ。ただし、iは虚数単位とする。 数存数の3次方社式が定教解1け反iをもつから これと夫役な教数1-Fiま解にもつ. よって、ズナので+bスー12は 「スー(iな}fx-(-)) 2り.ズ- 22て3を固数にもつ X+at2) メニ2メー3) ズナaズィ6ス-12 ln 2 X-2x t3% (D (a+2)r+(6-)2 -12 (at2)x-262Dtatz) (2atb+1x-3a-18 太キりは○のハズ7なので. 2at6+1=0 ~3a-8 a、-6 ーラ b=11 tH このとき、 は-223) (2ta+2) =0 0=-6なので、(x- 2273)(2-4)= 残りの解は./ロi、4 t+ ODD

分かる方、教えてくれると嬉しいです🙏🏼

C Fill in the blanks to complete the sentences. (1)これらのハーブはさわやかな香りがする.These herbs( )refreshing. (2)この単語を知らないよね. ー いいえ, 知っているよ。 You don't know this word, ( )a taxi. (3) タクシーに乗りましょう. (4) ウィルソン教授は厳しそうに見えたが,優しい方だとわかった. (明海大) Professor Wilson ( ) strict, but I ( ) him(

分かる方、教えてください🙏

LESSON 英語の型で表現する 教科書 pp.6-13. p.133 REUIEW +PRE LESSON 文の種類 |AI Choose the correct answer. E Ex (1)(How / What ) beautiful the sunset is! (2) My brother wants to ( marry / marry with ) Lucy. (3) Akemi finally told( the truth us / us the truth ). (同志社女子大) (4) There is a big dog in this house, ( isn't there / isn't this )? B Rewrite the sentences following the instructions. (1) The meeting started on time. [否定文に] (2) I went to Vietnam during the summer vacation. [下線部を尋ねる疑問文に] (3) Alice showed her friends the pictures of London. [S+V+O の形に] (4) It is a blue sky. [下線部を強める感嘆文に1 (国土舘大

右上にいる鳥のことを述べたいのですが、 どなたか分かる方いますか？ 教えてくれると嬉しいです🙏🏼

D Look at the picture and make four sentences. Use “There is/are ~ ム (例) There is a tree in the yard. s on the root. , There are cats There Is a man Under the tree, Thare in a deg There ate runnlng in the park. bindis