こちらの問題なんですけれども、(2)の解答で赤く塗ってある所が分からないのですが、ご説明いただける方いらっしゃいませんか？ これはt=sin２θだからこうなるのですか？

2 xy平面において, x*+y*=2xyを満たす 点(x,y)全体は右の図のような曲線Cとなる。 1+ (1) 曲線C上の点(0,0) 以外の点 (x, y) の 極座標を(r,0)とするとき, 0.5 y2を sin 20 の式で表せ。 0.5 O -1 0.5 -0.4 (2) 点(x, y) が曲線C上を動くときの (xーy)?の最大値を求めよ。 ただし, 最大値を 与えるx,yの値を答える必要はない。

数3の問題なんですけれども解き方が分からないので誰か教えてください！

回 x=sin0, y=sin 20 (0s0<)が表す曲線をCとする。 このとき次の 問いに答えよ。 (1) 0<0<号のときを dy cosé の式で表せ。 dx (2) x=a (0<a<1)におけるCの接線の方程式が y= 2 -+bで V3 あるとき,a,bを求めよ。 (3) aを(2)で求める値とする。このとき曲線Cと x軸, 2直線 *=a,x=Va のすべてで囲まれた部分の面積Sを求めよ。 (東京農工大)

英語の問題です (6)の穴埋めなのですが 3分の1を入れるところでcのone-thirdを選んだのですが、答えはdのone-threeでした。 なぜcが答えじゃないのでしょうか 教えてくださいよろしくおねがいします

1.次の英文について以下の設問に答えてください。 *印の付いた単語は下に注がありますので参考にしてください。 More than 100 years ago, a *deadly flu virus circled the globe. It caused the influenza pandemic of 1918-1919. Before it was Over, this disease had *sickened an *estimated 500 million people. That was[ 6 ]ofeveryone alive at that time. Some 20million to 50 million people died.

至急お願いします

しまう Relative Clause: Fill in the gaps to complete the sentences. 吉 Select from: That, Which, Where, When, Whose, Who 1. Neil Armstrong is the Astronaut was the first to walk on the moon. 2. A surgeon is a doctor per forms operations. 3. California is a state in Amer ica gover nor is the famous actor Arnold Schwar zenegger. 4. The Volga is a river is the longest river in Europe. 5. J.K. Rowling is an author “Harry Potter” series of books are very popular. 6. A dictionary is a book gives us the meaning of words. I can try Fugu? “Romeo and Juliet" 7. Is there a restaurant around here 8. Shakespeare was an English author wrote 9. A hospital is a place sick people go to become healthy again. 10. New Zealand is a country has more sheep than people. 11. Gr aduat ion is an event you celebrate graduating school or university. 12. Carnivores are animals only eat meat. 13.A dentist is a person checks and helps take care your teeth. 14. Ringo Starr is the drummer in the Beatles name was Richard Starkey when he was born. 15. Stefani Germanotta is a singer stage name is "Lady Gaga” . 16. August is the month many Japanese return to their hometown for Obon. ser ved his favour i te food. 17. To celebrate John' s Birthday they went to a restaurant 18. My car, is very expensive, is a Mercedes Benz. 19. Brazil is the country hosts the next Soccer Wor Id Cup in 2014. 20.1 like movies have happy endings 21.1 dislike people who 22.1 like places where 23.1 don't like it when 24.1 like animals that An interesting story - Rewrite the story using who, which, that where or and. which who I was sitting in a café. 1 often go there for a drink after work. I called the wai ter. I know him quite well. I asked for a cup of coffee. While I was waiting I looked at a newspaper. It was lying on the table. I started reading an article on the front page. It said: "Police are looking for a woman, Cather ine. She has been mi ssing from her home for two weeks.'1 looked at the photo. It showed a Woman with dark cur ly hair, she had a round face. I recognized it at once. She was my new neighbor . She had moved in just 2 weeks before.

補酵素と補助因子は同じでしょうか？ 回答よろしくお願いします🤲

途中式も教えてください

次の和を求めよ。 1-2-3+2-3-5+3·4-7+4-5-9+… +n(n+1)(2n+1) .e .8 I (S)

高校が独自で作った英文和訳の教材の問題で、授業で質問し損ねたので質問したいのですが Finally, in August, patients board a plane, train, coach, or car and proceed to foreign parts ... 続きを読む

緊急です！どなたかこの問題解いて下さいませんか？お願いします。

○教科書「AII Aboard! Commun ication EnglishI」 p.12, 20,28~31 を読んで、,次の問題に取り組みましょう。 A p.28~31 を読んで,( )内に入れるのに最も適切なものを選び,マークしなさい。 解答番号1~11 (1) “I go to school by ( 1 ) and use a smart card as my commuter pass.” ア taxi イ bicycle ウ subway エ car (2) This semester my midterm exam results were good, but I want to do better on the ( ア term exanms イ job interview ウ medical checkup エ graduation ceremony (3) I belong to the science club. We often use the ( ア courtyard ウ science laboratory イ teacher's office エ art studio (4) In my bag, I always have my school ID card , ( |4 ), and key chain. ア wallet イ hand strap ウ priority seat ticket machine エ (5) I like traveling. Ienjoy deciding the ( |5 )and the kind of transportation I will use. ア traffic light イ room charge ウ destination エ stationery (6) In the middle of the village, there is a small railroad ( ア appoint イ crossing ウ ticket reserve エ (7) I live in a( 7| ). It has a living room, a kitchen, a bathroom and a bedroom. ア restroom イ storage area ウ balcony condominium エ (8) I like vegetables such as potato, ( 8|)and carrot. ア vinegar ウ pudding イ sunny-side up egg エ eggplant (9) We usually wear our ( 9 It is dark brown with some green stripes. ア school uniform イ school clinic ウ fashionable hairstyle エ public school (10) Iwas born on August 31, so my star sign is ( 10 ). ア Moon イ Virgo ウ Wednesday Sun エ (11) Ialways suffer from 11 )in spring, soI use eyedrops and other medicines. ア cut イ diarrhea ウ hay fever influenza エ B )内に入れるのに最も適切なものを下のア~オから選び,マークしなさい。解答番号 12~16 A: Hi, ( 12 )is Bob King speaking. May I ( B: Sorry. She is ( 14 )now. May I( 15 )a message? 13 ) to Ms.Jones, please? A: Thank you. Please tell her that I have a question ( 16 ) the report that she sent to me. ア speak イ out ウ this take オ regarding エ

下から3行目「treated」とあるのはその前に「dengue is 」が省略されて受動態の形になるためでしょうか。

■次の英文を読んで, あとの問いに答えなさい。 Dengue fever is an illness similar to influenza. It causes a high fever, severe headache, 12ルろ Dain behind the eyes and so on. What makes it different from influenza is that people get dengue when they are bitten by mosquitoes carrying the virus. Originally, dengue was found in hot and humid climates. According to WHO* data, only ス nine countries experienced dengue before 1970. However, now more than 100 countries struggle with it. For example, in 2015, 2.35 million cases of dengue were reported in North い。 and South America, and 1,181 people died asa result of the disease. Dengue can be easily cured if treated_properly. The WHO is trying to support countries with a dengue problem by providing information about the disease and the necessary * WHO (World Health Organization) :世界保健機関 treatment.

わかりやすく説明お願いします🤲

65 25分 Complete 66 25分 *65(1) 関数 f(x)=|x\(e*+a) は x=0 において微分可能であるとする。この とき、定数aの値を求めよ。 [14 愛媛大) |-x+2x+1(x<2 のとき) x2+ax+b (2<xのとき) (2) 関数 f(x)=" がx=2 で微分可能となるよう な定数a, bの値を求めよ。 (15 愛知工大)