この問題(2)についてです。解説の赤い部分が分かりません。 よろしくお願いします🙇

300 線分ABを直径とする半円の弧Cの上に点Pをとり, P から AB への垂線と AB との交点をHとする。 さらに, ∠APH の二等分線とAB の交点をDとす る。 AB = 2, ∠APH = 20 であるとする。 - NAP=2sin20, PH = 2sin20 cos20 であることを示せ｡) (2) DH = PHtan であることを用いて, DH を sin0 のみを用いて表せ。 (3) PC上を動くときのDH の最大値とそのときのの値を求めよ。 一関西大一

平面ベクトルです。記述回答添削をお願いします。🙏

ractice 40 ***** 平面上の点A, B, C, P が 3PA+kP+PC=0 を満たしている。ただし, k>0 で,点A, B, C は同一直線上にないものとする。 (1) AP k, AB, AC を用いて表せ。Q (2) 点Pが△ABCの辺を含む内部にあることを示せ。 (3) △PAB と△PACの面積が等しいとき, △PAB と△PBCの面積の比を 求めよ｡ [15 関西大

全部の回答お願いします🙇🏻

4次の日本文の意味になるように、( )内の語を並びかえて、3番目、5番 答えなさい。ただし、 文の初めにくる単語も小文字になっている。 【2点×4=8点】 (1)ジムは英語だけでなくフランス語も話します。 Jim speaks English hot (アEnglish イFrench ウalso (2)京都には訪れるべき場所が沢山あります。 (ア ウ エ kyoto. (7 places has to many visit 7) Kyoto) . toto has many places to visi only Flach but Jim speaks not only English (3)このグラフは私たちに、彼が有名だということを示しています。 (アfamous イshows this graph エis オthat カ us キhe) This grogh showsus that dois fom (4) テニスは最もわくわくするスポーツのうちの1つです。 (アofイ sports ウ one エ most tennis exciting is the). mish exciting Tennic is one of the most exciting sports ne thth Jim オbut 力notキ speaks ク only)

わかるところ解答お願いします🙇🏻 書いてあるものは気にしないでください🙏🏻

( )内から適する語を選んで記号で答えなさい。 【1点×10=10点】 (1) We have (a little k little) rain in June. (2) I know a few イ few) English stories. (3) Haruto helped his brother (ア for イ during) an hour. (4) Run fast, (アand for ウ but エ so) you'll miss the train. (5) The plane(ア likes イ looks looks like) a big bird. (6) This movie is as exciting (ア that as) that one. (7) I have (live lived ウ living) in Tokyo for ten years. (8) I(アam イhave been ウ was) free yesterday. (9) My father finished (ア cooks イ to cook ウ cooking) dinner. (10) I have (7 seesaw seen) this movie once. 2空欄に適する語を書きなさい。 【2点×6=12点】 (1)私は冬よりも夏が好きです。 I like summer (2) ドアのそばに少年が2人います。 winter. two boys by the door. (3) ケンは出発することを決めました。 Ken leave. (4) なぜ熱心に勉強するのですか。 Why do you study hard? (5) 本を読むのはとても楽しいです。 医者になるためです。 a doctor. books a lot of fun. (6) 彼女は3人の中で最も背が高いです。 She is the the three.

3行目のdealの訳し方がわかりません

It's hard for them to wait for the good things in their lives, too. For children, holidays are jor events that they look forward to, and (5) they seem to take forever to come! However, their anticipation of the event can be used to help them learn a great deal about the passage of time, and the meaning of a day, a week, a month. We can help them enjoy the waiting すぎ period and learn from it, too. Studying the calendar will help them begin to understand how time is represented graphically, and will give them a rudimentary* awareness of the relative VT --- funita of time.

2文目の下線部5からのところで訳が それはいつまでたっても来ないように思えるのだ！ と書いてあるのですが否定になってるのはどうしてですか？

It's hard for them to wait for the good things in their lives, too. For children, holidays are major events that they look forward to, and (5) they seem to take forever to come! However, their anticipation of the event can be used to help them learn a great deal about the passage of time, and the meaning of a day, a week, a month. We can help them enjoy the waiting period and learn from it, too. Studying the calendar will help them begin to understand how time is represented graphically, and will give them a rudimentary* awareness of the relative V₁ 6 本

至急です🙇‍♂️🙇‍♂️ まったくわからないので教えてください😭

v blode 2 The following paragraph talks about school uniforms. 1) Find the topic sentence and underline it. 2) Find a sentence that disturbs the unity of the paragraph and double underline it. 3) Referring to the Study Points on page 92, discuss with your partner what is needed to make the writer's opinion more persuasive. Millal In my opinion, all high school students in Japan should be allowed to wear their own clothes to school instead of having to wear school uniforms. First, if students can choose which clothes to wear every day, they can learn to express their individuality. This year there are so many great fashions for students to choose from. Second, students can learn to take noge sli 132 responsibility for their own appearance. Third, when you wear the clothes that you like, you b joyero can relax and concentrate on your studies better. For all these reasons, allowing high school students to wear their own clothes is a good way to help them become more mature.

教えてください🙇‍♂️

2 The following paragraph talks about school uniforms. 1) Find the topic sentence and underline it. 2) Find a sentence that disturbs the unity of the paragraph and double underline it. 3) Referring to the Study Points on page 92, discuss with your partner what is needed to make the writer's opinion more persuasive. In my opinion, all high school students in Japan should be allowed to wear their own lama clothes to school instead of having to wear school uniforms. First, if students can choose which clothes to wear every day, they can learn to express their individuality. This year there me vod are so many great fashions for students to choose from. Second, students can learn to take ar algood pilt responsibility for their own appearance. Third, when you wear the clothes that you like, you 08.01 au of mant can relax and concentrate on your studies better. For all these reasons, allowing high school dilidienora students to wear their own clothes is a good way to help them become more mature.

まったくわかりません💦 教えてください🙇‍♂️

Practice QUINT Read the paragraph that explains some similarities between Kyoto and Paris and answer the following questions. We can find several similarities between Kyoto and Paris. Kyoto has () many historic sites as Paris. In Kyoto, we can find many temples, such as Kinkakuji Temple. ( 2 ), we can find famous cathedrals in Paris. For example, Notre Dame in Paris attracts a lot of tourists from all over the world. Furthermore, Kyoto is famous for its cuisine, and Paris is, ( 3 ). In Kyoto, we can enjoy a simple but delicious meal with various local vegetables called Kyo-yasai. In Paris, we can (4) enjoy a beautiful on ram.. both also French full-course meal that includes a delicious dessert. Moreover, (5) cities have long been cultural centers. There are, therefore, many historic places registered as World mot andr Heritage Sites in them. (u BED a bus Apo 1) Fill in the blanks ~5 with the words below. [ both similarly / too / also as ] 2) Choose the best one to fill in the blank ( A ) as a concluding sentence. in the blank (a) In sum, we can find several differences between Kyoto and Paris. (b) In conclusion, Kyoto and Paris have several similarities. quorils (c) Thus, it is difficult to reserve a table at famous restaurants in Kyoto as well as in Paris.

（2）についてです。②の部分が何故そうなるのかよく分からないので教えて欲しいです。

+練習 鋭角三角形 ABCがある, 頂点Aから辺BCに下ろした垂線の足をHと さらにHから辺AB, AC に下ろした垂線の足をそれぞれP, Qとす し、 る。 (1) A, P, H, Q は同一円周上にあることを示せ . (2) P, B, C, Qは同一円周上にあることを示せ. 精講 この問題では, 「内接四角形の定理の逆」 を使ってみましょう. あ る四角形の 「対角の和が180°」であれば,その四角形は円に内接 することがわかります。 練習問題4 (2)で見たように, 「対角の和が180°」であ ることは「ある内角がその“対角の外角” と等しい」ことと同じであることも 頭に入れておくといいでしょう. 解答 (1) ∠APH + ∠AQH=90°+90°=180° であるから, 内接四角形の定理の逆より,四角形 APHQは円 に内接する. つまり, A, P, H, Q は同一円周上 にある. (2) A, P. H. Q は同一円周上にあるので, 円周角 の定理より ∠AQP=∠AHP ・① また, ∠AHB=90° ∠APH=90°より, ∠AHP=90°-∠BAH=∠ABH ...... ② 2 B $15 P LP A H A B H C ① ② より, ∠AQP=∠PBC. 四角形 PBCQ は,1つの頂点の内角がその「対角の外角」と等しいので,内接四角形の定 理の逆より、四角形 PBCQ は円に内接する. したがって, P,B,C, Q は 同一円周上にある.