解き方などこれで大丈夫ですか？

18. [2024 信州大] 次の定積分を求めよ。 (cosxcos2x-cos3xsin4x)dx cia (at)=smaccos+cosorap -① sin (α-1) = sinacosp - cosxxstaß - 00s (dep) = cosxxcoop - sind sap - ① 11 cos (α-p)=00020098 + simacing - ③④ tsuosp/fos(p)+os(p)} ①-② = csacup = {(α) sin (α-p)} cos 20052* = f (cos 3x + Cosx) い Ogia4x=/siu7x-sin(x)}=1/2(sm7I+5mg) ± エー (*) = (60532 +0055-5-7x-4x) de 1/23 [1/1+six+107+0x 52 二(+) =() 空)-(一号長+骨)

不適切なものを選ぶ問題。 全部じゃなくてもいいので、解答の根拠を教えてくれるとめっちゃ助かります😭 答えは上から順に、 2.1.3.3.4.3.2.1.2.4 です！

(1) George Gershwin was a prominent composer which music earned him critical praise around the world. 11 2 4 (2) In spite for his fantastic talent, the baseball player had to abandon his professional career 2 as the result of a scandal. 12 3 (3) Because young people are checking social media so often, it is difficult for they to do well academically. 13 2 3 (4) The Irish Times was first published in 1859, and was an influential newspaper in Ireland ever since. 14 23 (5) Swimming is an extremely effective form of aerobic training that anyone can enjoy, 1 2 regarding of age or sex. 15 3 (6) Ginkgo trees, the last survivors of an ancient plant family, are found in numerous locations and use in multiple ways. 16 2 3 (7) Zora Neale Hurston, a writer and researcher born in Alabama in 1891, she came to be 2 recognized as a major figure in the Harlem Renaissance. 3 17 (8) The vast majority of person who heard Hamish Henderson speak were impressed by the power of his words. 18 23 (9) Although it varies depending on air dense, the boiling point of water is approximately 100°C. 19 1 2 3 (10) The collection of Japanese paintings in this museum is more extensive than the other museum. 2 3 20

1、2を教えてください。

Give it Look at the pictures and complete the sentences. You'll have a quiz tomorrow. 2) Can I use your) dictionary? 1) Ms. Ito 2) Yui us Shota

この問題がわかりません 解説お願いします

(3)図で、A、B、C、D、E、 F を頂点とする立体は、 △ABC=△DEF=90°の直角三角形ABCDEF を底面と する三角柱で、Gは面ADEBの対角線の交点である。 また、Hは辺AC上の点で、 AH:HC=1:2、Iは線分 AF と線分HDとの交点である。 AB=6cm、AC=9cm、AD=8cmのとき、 ① A、E、Fを頂点とする △ AEF の面積は 「アイ V ウ cm2である。 ② A、D、G、 Iを頂点とする三角すいADGIの体積は 8 H G 2 E F オ cmである。 (問題はこれで終わりです

なぜmeではなくmy selfを使わなければいけないのですか？ ちなみに答えは4です

(5) I would like to make in English. 1. me understand 2. me understood 3. myself understand 4. myself understood Igud gid sam svig.no Shure Bird His word soy ob wol sense svit o lo 500 a'il lod sa sud heads &'unqu

（）に入る単語を教えて頂きたいです🙇🏼‍♀️

Why did Yoshida begin taking photos? She wanted to show that Africa and the people there were attractive. Almost everyone around her thought of Africa as a hungry, poor, and violent place. She thought photos would help them understand the continent better. In addition, she wanted to take photos of African people in their traditional costumes. Nowadays, some young people in the ethnic groups avoid wearing their traditional clothes. She believes that taking photos of people in their clothes might help pass their traditions on to following generations. However, it was difficult to take good photos at first. "The trust between a photographer and their subjects is important," says Yoshida. "If they don't trust a photographer, they will not show who or what they really are." To gain their trust, she behaved as if she were an African woman. She wore the same costume, ate the same meals, and put on the same make-up. This led to her success.

最後の文の once they had served their customers they couldn't recall who had ordered what, even a few minutes later. のところって once they had se... Read More

the Russian psychologist Bluma Zeigarnik (1901-88) observed restaurant staff at work, and found that although they could easily memorize/food and drink orders when their customers ordered, once they had served their customers they couldn't recall who had ordered what, even a few minutes later. From this, Zeigarnik concluded that we

当たっていますか？教えてください。

Jack has never lied to me. He is a man of his (elstom). 21 (1) word (3) belief villdor (2) secret nosed (4) dishonestybr noitulos en ville lid W.290291 'blow di gigs

なぜ1番が3分の8cmになるかと、2番が13分の2倍になるのかが分からないので教えてください💦🙇‍♀️

2 右の図で、四角形ABCDは長方形, Eは辺AD上の点, F, Gはともに辺BC上の点で, EF⊥AC, EG⊥BCである。 また,H, I はそれぞれ線分ACとEF, EGとの交点で ある。 AB=4cm, AD = 6cm, AE=4cm のとき,次の(1), (2)の問いに答えなさい。 H E B F G C [愛知県] 差がつく (1) 線分FGの長さは何cmか, 求めなさい。 8 ✓ cm ] 思考力 (2) 四角形HFGIの面積は長方形ABCDの面積の何倍か, 求めなさい。

この問題の解き方を教えてください。解説を見ても理解できなかったです

問2 図3は,図1の二等辺三角形を底面とする三角柱で, GH=GI = 4cmとしたものです。 △GKLが正三角形であるとき,この三角柱の体積を求めなさい。 図3 H K