432番についてなのですが、今回正の範囲にと指定がないので軸とt＝0のときのグラフが正という条件がこの問題でなぜ必要か教えていただきたいです。ぜひお願いします🙇

=10ga (3)=log2(x+1) * TRY (3)xにおけるf(x) の最大値と最小値を求めよ。 (信州大) 432αを実数とし,f(x)=4*-α・2+1+α+α-6 とおく。 f(x) = 0 を満たす実 TRY 数xが2つあるようなαの値の範囲を求めよ。 433 次のことを証明せよ。 (1)10g23は無理数である □ (2) 1.5 <log23 <1.6 (三重大) |214 数学Ⅱ 第4章 指数関数と対数関数 432.2t とおき, f(x)=g(t)=t-2at+a2+a-6=(t-a)2+α-6 とする。 t=2x>0より, f(x) = 0 を満たす実数xが2つあるための条 件は,tの2次方程式 g(t) = 0 が異なる2つの正の実数解をもつこ とである。 よって, y=g(t) のグラフが右の図 のようになればよいから, g(t)=0 の判 別式をDとすると, 次の① ② ③ を同 時に満たすαの値の範囲を求めればよ い。 D 4 |/2=(-a)-1-(a+a-6) =-(a-6)>0 軸: t = α > 0 ...... ② lg(0)=4²+α-6>0 ......③ ①より, a <6 ...... ①' ③より, (a+3)(a-2)>0, ①②③より2<a<6 a<-3, 2<a ...... ③' f(x)はtの関数より,g(t) とおく。 tot 0 xo x 上のグラフより,t=2" にお いて, t>0を満たすの値 が1つ求められると,それに 対応してxの値も1つだけ求 められる。 ①は,g (a) <0 より 4-6 < 0 としてもよい。 3 433. (1) 10gz3が無 あると仮定すると, n log2 3=m とおける。 対数の定義よ 両辺を乗 m, nitiEc は3の累乗と 立たず、矛 よって ある。 (21.5- ここで。 したが また、 t

英検2級のライティングです。間違いやアドバイスがあればお願いします。採点もできればして欲しいです。

I think that it is importunt to set clar gouls when starting. new activities I have two The first reason is that reasons. First, it is effective to try new activities; for us. For example, if we want to give up New activities. We can continuex that. The scand reason is that. It is very help to decide planning. direction for effort. As a result. I'm able to know way to achive my goal. Therefore I agree with that it is important to set clear goals when starting new activities.

この文で（1）になぜinがはいるのですか？私はonだと思いました。 onを選んだ理由は、歴史の上にあるって思ったからです。

There are 1.42 million lakes in the world, and 62% of them are in Canada. Along with these many lakes are thousands of rivers. Today, 70% of North America's large rivers without dams are in Canada. In short, (A) Canada is covered by a lot of water. If you think about how much water there is in Canada, it is not surprising that a small boat, called a canoe, a big role ( 1 ) the history and development of the has played a big role country. 19~ 1980 role small boat with an open top that can move quickly and (B)-

添削お願いします。

5 次の質問に対して、 自分の考えとその理由を2つ、30語程度の英文で書きなさい。 Which country do you want to go to? Why?

答えourをmyにしても大丈夫ですか？③

次の里美(Satomi)とトム(Tom)の会話において,( )内に示されていることを伝える場合,どのように言え ばよいか。 (1)~(3)の Satomi : Good morning, Tom. の中に, 適切な英語を補いなさい。 Tom : Hi, Satomi. Satomi: I have a question. What's the date today? Tom : Satomi: Tom : Satomi : December 5th. So, today is your fifteenth birthday, right? Happy birthday, Tom. Thank you very much. This is a present for you. Here you are. Tom : Oh, I'm very happy. Can I open it ? Satomi Sure. Tom (1) (気に入ってくれるといいな。) : How nice! My favorite CD and many birthday cards. Satomi: They are from every student in our class. Tom : I didn't know you remembered my birthday. Satomi : You're our classmate. Tom : (2) (この夏, あなたがクラスに来て以来の親友じゃないの。) You often talk about your country, Canada. I think it's so exciting. I'm glad to hear that, Satomi. (3) (クラスのみんなに感謝しなくちゃね。)

空所補充 a で始まる単語を教えてください

His doctor warned the man that the bad air in the city would ( his lung disease and advised him to move to the country, where the air was cleaner.

(2)合っていますか？答えgood→bestにしました

Satomi : Good morning, Tom. 言え な英語を補いなさい。 Tom : Hi, Satomi. Satomi : Tom : I have a question. What's the date today? December 5th. Satomi : So, today is your fifteenth birthday, right? Happy birthday, Tom. Thank you very much. Tom : Satomi: This is a present for you. Here you are. Tom Oh, I'm very happy. Can I open it? Satomi Sure. (1) (気に入ってくれるといいな。) Tom : How nice! My favorite CD and many birthday cards. Satomi They are from every student in our class. I didn't know you remembered my birthday. Tom : Satomi : You're our classmate. (2) (この夏, あなたがクラスに来て以来の親友じゃないの。) You often talk about your country, Canada. I think it's so exciting. Tom I'm glad to hear that, Satomi. (3) (クラスのみんなに感謝しなくちゃね。) (注) present プレゼント card(s) カード Canada カナダ I hope that you will like it. We've been been best friends since you came to Our class this Summer.

💜【英語】 ①She created this blueprint. ＝彼女がこの設計図を創作しました。 ②We must to solve the problem that him caused. ＝私たちは、彼が起こした問題を解決しなければいけません。 🍒この場合は、... 続きを読む

(1、3)この英文で大丈夫ですか？

次の英文は,望 (Nozomi) が彼女の祖母について書いたものである。 この英文を読んで,(1)~(3)の問いに英語 で答えなさい。 I'm going to talk about my grandmother. She is sixty-three years old now. My grandmother likes swimming. She goes to a swimming school every Tuesday, Thursday and Saturday. She started to learn how to swim when she was sixty. One of her friends took her to the swimming school. There was a swimming class for old people who couldn't swim. Most of them were over sixty. She was surprised because old people were trying to do a new thing. She wanted to try something new so she decided to join the swimming class on that day. At first it s It took six months to swim. Now she can swim fifty meters. She said to me, "You can I hope I will enjoy swimming with her someday. was not easy for her to swim. start a new thing at any time." (注) most of~ 〜の大半 someday いつか over ~を超えて surprised 驚いた try to ~ ~しようと努める (trying は ing形) (1) How many times in a week does Nozomi's grandmother go swimming at the swimming school ? She goes swimming at the swimming school three times a week. (2) When did Nozomi's grandmother start to take a swimming class? She started to take a swimming class when was sixty. (3) Why did Nozomi's grandmother decide to join the swimming class? She wanted to try something new.

（お）で、問いがjohnになったつもりで4語以上の英語をかきなさい、模範解答が　can you take me なんですが 自分はwhy dont we go っと書きまして この場合減点ですか　ばつですか？　

図2 青木さんの家にホームステイしている bag) を使って料理を作るバッククッキング (Pack Cooking) の講習会 ながら会話をしています。 次の英文は、講習会のちらしと会話の一部です。 ①~③に答えなさい。 会のちらし Be a Pack Cooking Are you interested in an easy way of cooking? If so, how about trying "Pack Cooking"? It's very easy! Cut ingredients, put them into a plastic bag, put the bags in Day : Every Saturday Time : 1:00 p.m. 4:00 p.m. (Time to start eating: 2:30 p.m.) Place Fee : Room 105, Kozue Hall : 500 yen for one person To join us, you must come with an adult if you are an elementary school student. For more information, call at 123-4567. John (300 yen for food, 200 yen for the room) Students do not have to pay for the room. : Today's dinner tastes so good! How did Ms. Aoki Oh, thank you. Look at this. It is John (63) you make this? call "Pack Cooking." We need only water. ingredients, seasoning, and plastic bags. We don't need many cooking tools. That sounds interesting! I have never heard that. Ms. Aoki When we cook in this way, we can make several dishes in one pot at the same John time by putting the bags in the hot water and boiling them together. That means we can (う) water, right? Ms. Aoki : John That's right. We also need only a little seasoning before we seal the bags. (え) Why? Is that enough? I'm afraid that the taste will be Ms. Aoki: No! The food tastes good. The flavor of the seasoning soon spreads through the food because the bags in the hot water are sealed. After enjoying the dish, we have to wash only the pot and a few other things. Easy, right? John Ms. Aoki John : That's cool. I'm interested in Pack Cooking. (お) to this seminar? Sure. Then, let's go there next Saturday. You will pay only for food because yo are a junior high school student. : That's perfect! Thank you, Ms. Aoki. (E) ingredient adult stel seasoning - boil ~をゆでる fee tool. A pay for 〜 〜の支払いをする pot なべ seal 〜を密封する flavor 講習会のちらしとして (あ) に入れるのに最も適当なのは、ア~エのうちではどれです 一つ答えなさい。 ( ( 7 Cartoonist 1 Newscaster ウ Chef I Lawyer