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Mathematics Senior High

※前回同じ質問したのですが、やはり分からないので 教えて下さい。 白チャート数学ⅠA 整数の問題です。 青線の部分が問題と解答です。 青い四角が疑問点です。 青い四角の部分には「mとnは自然数であるから‥」と書いてあります。 nは問題文に「nは自然数とする」と 書い... Read More

440 次方程式の解が整数であるための条件 433 発展例題92 O0OO 発展例題93 の について )方程式のを解け。 方程式のの解が整数であるとき,nの値とそのときの解を求めよ。 CRI 2次式が整数となる条件 GUIDE) 2次式=m(m は整数)とおいて,( )x( )=(整数)の形を導く 1) 解の公式を利用する。答えはヵを含む式となる。 (2) のの解は『n+12 を含む式となるから、この式が整数になる必要がある。 +12=m (mは整数) mーn=12 すなわち(m+n)(m-n)=12 -()×( )=(整数)の形 よって,積が12 となるように m+n, m-nの値の組を決める。 その際は、下の解答のように、0<m-nくm+n を利用して値の絞り込みを効率 よく行うとよい。 4章 のとおき,両辺を2乗して整理すると 発 展 学 習 自然安みる? 解の公式により x=ーn土くn-1-(-12)=-n±\"+12 のから、n+12 が整数であれば,方程式のの解は整数と なる。y12=m (m は整数)とおいて,両辺を2乗すると n412=m° よって(m十n)(m-n)=12 m, nは自然数であるから m+nも自然数で,③より m-n-を満たすとき も自然数である。また -2次方程式 ax°+26'x+c=0 の解 の は ーが土/b-ac これを利用する。 ゆえに m-n=12 -( )×( )=(整数) IF. 0<m-nくm+n m+n>0ならmーn>0 m+n=12 m+n=6 m+n=4 *掛けて12になる 12 の正 の約数の組。(*)に注意。 ゆえに、3から m-n=1 m-n=2' m-n=3 解は順に ( 4 2。 13 11 (m、n)= 7 1 2'2 2'2 よって ーn=2 のとき,のから x+4x-12=0 よって(xー2)(x+6) =0 一般に、整数 a,bについて、(a+b)-(a-b)=26(偶数)であるから,a+bと 4-6はともに偶数であるか,またはともに奇数である。このことを利用すると,上の このとき,方程式①の解は、②から x=ー2土16=-2±4 すなわち x=2, -6 n=2 解答のの組は省くことができて,さらに効率よく進められる。

Solved Answers: 1
English Senior High

急いでます💦 解答が無く困っています。高校2年の英語表現です。 仮定法を使う問題です。分かる方教えて頂きたいです。 写真見にくいかもです。

10 仮定法を使って表現する 教科書 |pp.98-99 EAR: 2 CLASS : No. NAME: PART O Ifl had ~, /lwish I had OL D Fill in the blanks to complete the sentences. Change the verbs into the correct form. (1)もし道がもっと混んでなかったら,時間内に到着したかもしれない。 (1)(I don't have a computer.) If there( ) less traffic on the road, we( へ If I a computer, I the work quickly.( have, will finish ) arrived in time. (2)(She is busy.> (2)もし部活を続けていれば,私のひざはもっと悪くなっていただろう。 If she not busy, she to Kurashiki with us.( be, can go) ) the club activity, my knee ( (3)もう少し早く学校を出ていれば,にわか雨にあわなかったのに、 If I( )Worse. (3)(I cannot drive.) If I in this village more easily. (can drive, can live ) If I( ) school a little earlier, I ( へ (4)(There aren't flour and eggs here.> ) caught in a shower. (4)もしサヤカがその時そのプロデューサーに会っていなければ、今は歌手ではないだろう。 ) the producer then, she( If there flour and eggs here, I pancakes for you. If Sayaka( (be, will make ) 16 a1a (5)(My father doesn't like dogs.) )a singer now. If my father dogs, my family one. ( like, may keep ) E Complete the sentences with the words in brackets. (1)( better /I/I/ were / wish ) at sports. onte IS at sports. B Change the verbs into the correct form. (2)(I/ my school / near / were / wish ) the station. Bobby:If you had one hundred million yen, what () brpee the station. (will do ) (3)(come / had / I / to the party / wish/ you ) last night. Sarah:I (2) a large house and a luxury car, and travel around last night. the world. ( will buy ) (4)(could speak / I /I/ English / wish ) like you. Bobby:Well, if I (3) you, I would save the money for my future.( be) like you. Sarah:Oh, you are too realistic! (5)(had / I /I/ more pictures / taken / wish ) during the trip. during the trip. aspn3 ni prielpt aii 2291は FJ Express the following in English. C| Write new sentences with similar meanings. (1)もし学校の制服がなければ,私たちは自分たちのスタイルを楽しむことができるのに (1) You were careful, so you escaped the accident. If we didn't have a school uniform, ) careful, you might have been in → If you( (2) 私が北海道に住んでいれば、もっとしばしばスキーに行けるのに the accident. (2) It wasn't sunny, so I didn't go fishing. ) fishing. (3)もし緊張していなかったら,きみはその試合に勝っていたかもしれない。 If it( ) sunny, I would( (3) I didn't study hard, so I couldn't get a good score. )a better score. (4) 歌がうまければなあ、 → IfI( )( ) harder, I ( (4) I took your advice, so my business is successful now. (5)きみが私と一緒にそこにいたらよかったのに。 → If I( ) your advice, my business would ) successful now. 仮定法を使って表現する ■LESSON 10

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English Junior High

この問題を教えて下さい! できれば全部お願いします!

演習項目→BE 動詞と一般動詞の疑問文 9 0 演習項目→Be 動詞と一般動詞の否定文 Be 動詞の文では Be 動詞を文頭に移動します。一般動詞の文では Do か Does をメ Be 動詞の文では Be 動詞の直後に not を付け加え、般動詞の文では動詞の直前に don't か doesn't を付け加え、動詞は原形を用います。次の文を否定文に書き換えなさい。 付け加え、動詞は原形を用います。次の文を疑問文に書き換えなさい。 1. You area teacher. 1. That is an old piano. S 2. That boy is Tom's brother. 2. I am an English teacher. 3. These flowers are tulips and roses. 3. That is a good camera. 4. Her father is a doctor. 4. Her brother is a music teacher. 5. Mr. Smith is your 'teacher. 5. That cat is black and white. 6. Those dogs are very big. 6. Tom's father is a doctor. 7. I am Mr. Brown's' student. 7. Those flowers are very beautiful. 8. You are a Japanese girl. 8. Nancy's sister is a good pianist. 9. You havea nice bag. 9. I have English books in my bag. 10. Your mother likes red flowers. 10. My brother has an old bicycle. 11. Mr. Brown has a new car. 11. Those boys like this dog very much. 12. They have a white dog and a black dog. 12. Your mother has a new Japanese car. -ト-- 13. Jane and Lucy have beautiful flowers. 13. Tom's brother and sister have a nice dog. 14. Your sister wants the old guitar. 14. My brother wants a new bicycle. 15. Nancy plays the piano every day. 15. Those girls have beautiful flowers.

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English Senior High

この問題を教えて下さい! できれば全部お願いします!

GW 奥語課題 1日1枚央市期のル GW央 演習項目→複数の人称代名詞 複数の人称代名詞 We·You· They の用法を区別しましょう。次の下線部をWe/You/ They のうち適当なものに置き換えて全文を書き換えなさい。 演習項目→複数と単数) 3 4 文の一部を単数に変えると他の部分も同時に変わります。どの部分が変わるか注意して 次の下線部を単数に変え、全文を書き換えなさい。 1. We are doctors. V 1. Tom and Mike are English students. C C 2. They are American girls. 2. Mike andl are English boys. L 3. Those are English books. 3. You and Jane are good friends. 4. They are Japanese boys. - -ト 4. You and I are good friends. -ト- 5. These are my books. 5. She and I are not American girls. 6. You aren't teachers. 6. Tom andI are not brothers. 7. They aren't Jane's dolls. 7. You and Bill are American boys. 8. They aren't your father's cars. 8. Dick and Mary are brother and sister. 9. Those boys aren't students. 9. You and I are Japanese students. 10. They aren't my cils. 10. Jane and Nancy are sisters. 11. Are those your books ? 11. Jane and I are not sisters. 12. Are these Mike's balls ? 12. This book and that book are Mike's. 13. Are they hats or caps ? 13. You and Nancy are American students. 14. What are these ? 14. Miss Green and Mr. Miller are our teachers. 15. Whose bags are those? 15. Mr. Miller and I are your teachers.

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English Junior High

この問題を教えて下さい! できれば全部お願いします!

GW 奥語課題 1日1枚央市期のル GW央 演習項目→複数の人称代名詞 複数の人称代名詞 We·You· They の用法を区別しましょう。次の下線部をWe/You/ They のうち適当なものに置き換えて全文を書き換えなさい。 演習項目→複数と単数) 3 4 文の一部を単数に変えると他の部分も同時に変わります。どの部分が変わるか注意して 次の下線部を単数に変え、全文を書き換えなさい。 1. We are doctors. V 1. Tom and Mike are English students. C C 2. They are American girls. 2. Mike andl are English boys. L 3. Those are English books. 3. You and Jane are good friends. 4. They are Japanese boys. - -ト 4. You and I are good friends. -ト- 5. These are my books. 5. She and I are not American girls. 6. You aren't teachers. 6. Tom andI are not brothers. 7. They aren't Jane's dolls. 7. You and Bill are American boys. 8. They aren't your father's cars. 8. Dick and Mary are brother and sister. 9. Those boys aren't students. 9. You and I are Japanese students. 10. They aren't my cils. 10. Jane and Nancy are sisters. 11. Are those your books ? 11. Jane and I are not sisters. 12. Are these Mike's balls ? 12. This book and that book are Mike's. 13. Are they hats or caps ? 13. You and Nancy are American students. 14. What are these ? 14. Miss Green and Mr. Miller are our teachers. 15. Whose bags are those? 15. Mr. Miller and I are your teachers.

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English Senior High

この問題を教えて下さい。 できればすべてお願いします!

演習項目→BE 動詞と一般動詞の疑問文 9 0 演習項目→Be 動詞と一般動詞の否定文 Be 動詞の文では Be 動詞を文頭に移動します。一般動詞の文では Do か Does をメ Be 動詞の文では Be 動詞の直後に not を付け加え、般動詞の文では動詞の直前に don't か doesn't を付け加え、動詞は原形を用います。次の文を否定文に書き換えなさい。 付け加え、動詞は原形を用います。次の文を疑問文に書き換えなさい。 1. You area teacher. 1. That is an old piano. S 2. That boy is Tom's brother. 2. I am an English teacher. 3. These flowers are tulips and roses. 3. That is a good camera. 4. Her father is a doctor. 4. Her brother is a music teacher. 5. Mr. Smith is your 'teacher. 5. That cat is black and white. 6. Those dogs are very big. 6. Tom's father is a doctor. 7. I am Mr. Brown's' student. 7. Those flowers are very beautiful. 8. You are a Japanese girl. 8. Nancy's sister is a good pianist. 9. You havea nice bag. 9. I have English books in my bag. 10. Your mother likes red flowers. 10. My brother has an old bicycle. 11. Mr. Brown has a new car. 11. Those boys like this dog very much. 12. They have a white dog and a black dog. 12. Your mother has a new Japanese car. -ト-- 13. Jane and Lucy have beautiful flowers. 13. Tom's brother and sister have a nice dog. 14. Your sister wants the old guitar. 14. My brother wants a new bicycle. 15. Nancy plays the piano every day. 15. Those girls have beautiful flowers.

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