(4)（i）について、解答の赤線部が分かりません。 画像入り切らなかったため加工しました。見にくかったらすみません…

5 【数学Ⅱ 三角関数】 10 の方程式 I 2018 sin 20 cos0=asin0 がある。 ただし, a は実数の定数である. (2) sin (1) 002 において, 0 の方程式 cos0= 左を解け。 出 √√2 会 5 12 πの値と COS 「πの値を求めよ.なお,必要であれば,1=2 TC 12 ことを用いてよい. (3)a=1のとき, 0≦0 <2πにおいて, (*)を解け. (4) 002 とする. (i) (*) の異なる解の個数が6個となるようなaの値の範囲を求めよ。 (ii) α の値が (i)で求めた範囲にあるとする. このとき, (*) の異なる6個の解を O1,02, a 03,04,05,06 とおく。 ただし、0≦x<<<<<<2πである. となるようなaの値の範囲を求めよ. である 02+: Sor 05 3

分かるところだけでも大丈夫なので教えてください🙏

htu たんです 0 いてはど 2 # 2 P 49 ()内に入る適切な語を書きましょう。 1"( ) you ( 2 "What do you want to do today? Play a game?" “I ( movie ( ) play a game." P 57 ( )内の語句を並べ替えて、会話を完成させましょう。 1 "Where (held / the rock concert / was )?" "It was held in the concert hall." ) a cup of coffee?" "Yes, please." 2 "My house (being / painted / is) now." "When will it be finished?” )( 3 "Excuse me, cell phones (here/ used / be / cannot)." "I'm sorry." #P 6 7 4 "Her second novel (published / be /is/ to / going) soon." "I can't wait to read it." 5 "This song (played / been / at / has ) lots of weddings." "It is so romantic." 2 ( )内の語句を並べ替えて、 英文を完成させましょう。 1 It is (for us / important / study / to) history. With this knowledge, we can understand world news more deeply. 2 Kate got up at three (on TV / the soccer game / to / watch ). I missed the 4 Are you ) watch a 3 My parents (go / let / me / won't ) abroad. I want to be independent of them. serious? (allow / can't/I/ to /you) do such a terrible thing. 5 You have a toothache. You should (a dentist / check/have/ your teeth). game. 6 We are so grateful for all your help. We would (accept / like / this gift / to /you). 7 It was nice (of / say / "Thank you" / to /you) to your mother. I guess she's happy.

この問題って、f(0),f(2)>0 を使って解いてもいいんでしょうか？ 答えはあってました。 f(x)=x^2-2ax+3a

54 T ある変 基本例題 92 0≦x≦2の範囲において、 常に x²-2ax+3a> 0 が成り立つように、 の値の範囲を定めよ。 CHART & THINKING x 2の係数は正。 「常に x-2ax+3>0 が成り立つ」 ことから, 図1のように単にD<0 とするのは間 違い! 0x2の範囲」 となっているから, D>0 で図2のような場合も起こりうる。 「ある変域でf(x) > 0 (変域内の最小値)>0｣ 図1 と考えてみよう。 文字を含む2次関数の最小値は どのように求めればよかっただろうか。 → p. 114 基本例題 64 参照。 解答 f(x)=x2-2ax+3a とする。 求める条件は、0≦x≦2の範囲における関数 y=f(x) の最 小値が正であることである。 f(x)=(x-a)^-a²+3a であるから, y=f(x) のグラフは 下に凸の放物線で, その軸は直線 x =α である。 [1] α<0 のとき f(x) は x=0 で最小となる。 よって f(0)=3a>0 Dne [2] 0≦a≦2のとき f(x) は x=α で最小となる。 よって f(a)=-a²+3a> 0 すなわち これを解くと, a (a-3) < 0 から 0<a<3 これと 0≦a≦2の共通範囲は [3] 2 <a のとき 0<a≦2 f(x)はx=2で最小となる。 f(2)=4-a>0 よって これと 2 <α の共通範囲は 2<a<4 求めるαの値の範囲は①と② を合わせて 0<a<4 これは α<0 を満たさない。 ****** ゆえに (0fp) 025+zd a²-3a<0 ISATION ①0万不 MEMO (2) 01 20 x 02 定数 ( 図2 [1] 軸が変域の左外 02% [2] 軸が変域の内部 0a2 [3] 軸が変域の右外 Li V 02 基 Z C

大至急　！　13時までに教えてください！ 英検3級の英作文の問題で QESTION.What is your favorite school event ? という問いに対して My faverit school trip . I like the school ... Read More

全文訳お願いします！

4 20 科学 420 words Chapter 1 The recipe for making any creature is written in its DNA. So last year, when 1-1 geneticists* published the near-complete DNA sequence of the long-extinct woolly mammoth, there was much speculation about whether we could bring this giant creature back to life. 5 東京理科大学 Creating a living, breathing creature from a genome* sequence that exists only in a computer's memory is not possible right now. But someone someday is sure to try it, predicts Stephan Schuster, a molecular biologist at Pennsylvania State University and a driving force behind the mammoth genome project. So besides the mammoth, what other extinct beasts might we bring back to life? Well, 12 10 it is only going to be possible with creatures for which we can recover a complete genome Without one, there is no chance. And usually when a creature dies, the (1) - DNA in any flesh left untouched is soon destroyed as it is attacked by sunshine and bacteria. sequence. There are, however, some circumstances in which DNA can be preserved. If your 15 specimen froze to death in an icy wasteland such as Siberia, or died in a dark cave or a really dry region, for instance, then the probability of finding some intact stretches of DNA is much higher. Even in ideal conditions, though, no genetic information is likely to survive more than a million years. - so dinosaurs are out and only much younger remains are likely to yield good-quality DNA. "It's really only worth studying specimens that are less than 100,000 years old," says Schuster. The genomes of several extinct species besides the mammoth are already being sequenced, but turning these into living creatures will not be easy. "It's hard to say that something will never ever be possible," says Svante Pääbo of the Max Planck Institute 25 for Evolutionary Anthropology in Germany, "but it would require technologies so far removed from what we currently have that I cannot imagine how it would be done." But then (3) 50 years ago, who would have believed we would now be able to read the instructions for making humans, fix inherited diseases, clone mammals and be close to creating artificial life? Assuming that we will develop the necessary technology, we have 30 selected ten extinct creatures that might one day be resurrected. Our choice is based not just on practicality, but also on each animal's "charisma" - just how exciting the prospect of resurrecting these animals is. 1-3

remember を、動詞でなく、名詞として「思い出」と使うことは可能ですか？

この英文和訳で、at whichの前置詞+関係代名詞の部分でatは元々どこにあったものなのか分からないです。よろしくお願いします。

Although this phenom little or no conscious thought is often referred to as "muscle memory," ―▬▬▬▬▬▬▬▬▬▬ the (2) process of getting to that magical point at which one can execute a gymnastics move, play the guitar, or ride a bicycle with ease occurs primarily in the brain. In development studies, researchers have used *magnetic resonance

英語の質問です！🥺🥺 波線引いてあるところです！ They could play back at will ってどこにかかってますか？ the accidentについたらおかしいかなって思ってるんですけど 答えの訳では[意のままに再生することのできる、事故について〜]と書... Read More

L By average. Participants were then 20 after the collision. (5) the fact that there was no broken glass, three times as many participants in the "smashed" group as in the "contacted" group reported seeing the nonexistent broken glass. (6) Clearly, the participants in this study had not stored a video-like memory of the accident that they could play back at will.) They had stored a rough impression of 25 the accident and, when asked to recall specifics, filled in details based on information available to them in the present. For example, participants in the "smashed" group reconstructed their memory so that it was consistent with a more violent collision, with the cars going faster and the broken glass that often results from such a collision. -1

自分で書いてみたのですが、(自信ないです)これって10点満点でどれくらいですか？、文法的におかしいとこなどあればぜひ教えて欲しいです、

3 Searching for the key of the gas was difficult to understand the memory. It this core Because but it was The level of it was ? necessary more CO₂ climate change, was expected that was not a complicate structure for earth to for the the researchers enter cake structure which we had thought lower that it is today. the low concentration measured ice age sycle. level of CO₂ ir

自分で書いてみたのですが、(自信ないです)これって10点満点でどれくらいですか？、文法的におかしいとこなどあればぜひ教えて欲しいです、

3 Searching for the key of the gas was difficult to understand the memory. It This core Because but it was The level of it was ? necessary more CO₂ climate change, was expected that was not a complicate structure for earth to for the the researchers enter cake structure which we had thought lower that it is today. the low concentration measured ice age sycle. level of CO₂ ir