請問這兩題怎麼算呢？ 拜託了🙏

A4.5 某交流電發電機的電壓V(伏特)是時間t(秒)的正弦函數v=10sin(20t + π 赫茲。 (1) 電壓變化的週期為 (2) 當t=0時,電壓大小為 (3) 可以產生的最大電壓為 1 秒,頻率為 伏特。 伏特。 A4.6 風力發電機的三個葉片長皆為30公尺,其旋轉中心離地面 60公尺,如圖所示。 P點為某葉片頂端且逆時針方向旋轉一圈需6秒。當此發電機開始運轉時,P點 恰在離地最高的位置上,x秒後,P點離地的高度y(公尺)可表示為 y=asin(bx+c)+d,其中a>0、6>0、0≤c<。 則序列(a,b,c,d)= 【Angron】 。 P

求解答，二變數函數的偏微分

du 2. u=x² * (1) x (2) du dy du (3) dz

解

✔x√x ( ( ( ( ) 8. A: ( ( ) 9. A: (C) how many (B) how often ( ) 10. Jacky would like to bring that poor dog back home, but he isn't sure dogs. (A) how ( ) 11. Willy found (A) that ) 12. A-wei: This typhoon is so terrible! A-fen: Yes. I'm not sure (A) who 連綴動詞、感官動詞及使役動詞 配合課本 pp. 65-66 ( ) 1. The town looks (A) different ( ) 2. The weather is getting (A) coldly ( ) 3. I saw John (A) running () 4. I saw John and (A) walking ( ) 5. Your mother (-) 6. Julie > 8. It was an exciting moment for Mr. and Mrs. Wang to have a baby. (A) what ) 9. Susan: Do you know Walter: Oh, come on! I've only talked for thirty minutes! (A) how old (A) What (A) looks; look . vivo X80 2023/05/06 01:31 (B) when ZEISS (C) whether (D) why you have talked on the phone? Aren't you thirsty? (B) what (B) what (C) whether (D) which the novel (¹) he bought last week was under his bed (B) where (C) whether (D) which (B) cold (C) like cold after the school bus this morning. (B) to run (C) has run away immediately (). I didn't want to talk to him. (D) to running (C) walked (D) to walking a fifty-year-old woman. (B) walk young. She doesn't (B) looks like; look (C) looks; look like (D) looks like; look like hungry when she saw the delicious food on the table. (A) got (B) smelt (D) tasted ( ) 7. When did you come home? I didn't hear you (A) open (A) What ) 10. Tom felt shocked () when he heard me (A) shout (B) to shout [96-1-14) they learned that they were going we can still go fishing tomorrow. (C) which 80 (C) kept (D) how long now. It's modern and clean. (B) differently (C) more differently (D) the most different Put on your jacket before you go out. (D) snow (B) opened does the fruit look in this fruit stand? B: It looks fresh. (C) to open (3) Who (D) have opened does the little girl look like? B: Her mother, of course. (C) Where (B) Who (D) How (C) Where (D) How (C) shouted (D) whether the door. at the stranger. his mother likes 【95-1-15) (D) to shouting 【95-1-12】 [93-1-12] [92-2-18] ( ( ( ( ( ( ( ( ( ( ( ( ( ) 2 會考題 ( ( ) ) ) 23 ) 22 ) 23. ) 1. ) 2. ) 3. C ) 4. I (

解

( ) 12. Susan bought (A) many ) 13. I don't like any one of these three watches. Can you show me (A) the others (C) either ( (B) other ) 14. Jogging is the only exercise I enjoy. I find (A) all (B) few ( ) 15. Dino: Do you have any stamps? ( ( ( ( ( ) 18. Michelle Walden, Emma: Yes, just go to my desk. I put (B) others (A) ones (C) some ) 16. I haven't been to the movies these days. Are there any good (A) ones (B) others (C) them ) 17. Mrs. Luo: Who put these socks in the refrigerator? Mr. Luo: I don't know. They're not (A) me (B) mine bread in the supermarket, but she did not buy anything to drink. (B) some (C) any (D) one (C) many vivo X80 2023/05/06 01:31 . ZEISS (C) every (A) any (B) both (.) 23. This restaurant makes delicious chicken rice, so (B) others (D) another other kinds of exercise boring. 【103-29) (D) some Ask your son. (C) my (D) myself of the best basketball players in our school history, was called "Flying Walden" because she could jump very high. 【100-2-9】 (A) any (B) each (C) one ( ) 19. Elise: I need a dress for tomorrow's party, but I don't have one. Fiona: Why don't you try on my red one? I bought (A) it (B) one (C) ones today. in my pencil case in the second drawer. (D) those (A) it is (B) they are (C) there is ) 24. Cell phones are convenient; every person in my family has one? (C) the other last week. (D) them ( ) 20. On the way to work, Natasha was surprised to find she was wearing a white earring ( ) [99-2-6] on one ear and a gray earring on (A) another (B) the next ) 21. Beatrice loves to draw apples. You can see on her school bag! (A) one (B) others (C) them (D) which ( ) 22. I cannot understand why Steven bought so many watches but never wears (D) others 75 | 建議售價 120 元 | 702051937011 this week? (D) those (C) some (D) who 【105-8】 【104-7】 【103-特-8】 【101-14】 【100-2-18】 (D) the second in her notebooks, on her letters, and even 【99-2-3】 (A) it (B) one (C) them (D) those ) 25. Mike: I heard there are many monkeys in this mountain. But I didn't see any of them last time when I was here. Carl: Hope we can see (A) another 【100-1-17】 (D) themselves of them. always full of people at mealtime. (D) there are 【99-1-9】 【98-2-14] 【98-2-10】 [98-1-201 III 408 HO $

想問第8題A選項的平均速度怎麼算 謝謝~

7.設f(x) = x(x+1)(x+2)(x+3) (x-1)(x-2)(x-3) (A)在開始 2 秒內的平均速度為 33 (D)該物體以等加速度運動。 f(0) = f(2) 10,設函數f(x) = fl 9.設f(x)為可微分函數,且f'(3)=-1,則lim. h→0 3x+4 x² +1 , (**j])) 下列敘述何者正確? (A) 20 =10-2 (B): dx D . fisj (x+2) -60 一物體在數線上進行直線運動,若該物體在t時刻的位置坐標在S(t)=t*+10+5,則下列敘述何者 c 正確? in s(t) = 3+²710 12+10 在第2秒的瞬時速度為 33 (C)在第 2 秒的瞬時加速度為 12 22 8+2015. btti 則f'(-2)= 求lim x--2 vo 30 we set to 2. f(3+5h)-f(3) 2h f(x)-f(-2)_ x+2 x(x+1)(xA2)(x+3) XX-U(x-2)(x-33 23 5* c 3(X+1)=(3x+4) (2x) d f1₂) (x²+1) ² 2/2 ( ² ) = 2 2 0 ² (√) - 2 √ (1 d dx x 6 6x³ | dx dx xx6 5 Ź X+1 JW= O S -(x²³ firs) X.X² X ²² f(xx) 15+8 23 vs -6+4 = 5h 4 -(2x-3)=7(2x-3)°。 12+10 +(3xsh)-f(a)(h X.X ³² X ²/² ²/X ² -2.(-D(1) 1-321-4)(-5) 12 头 60 zh 豆 +(3x-3)=7 (F

請問有人可以給龍騰2 三合一&all in one的解答嗎

請問這題為什麼不能把每個組合的機會成本算出來呢

四 ABLE 超市買東西,讓他減少了 一個小時的複習時間,但回來快速地複習 兩科,此時生產可能線將如何變動?請勾選正確選項並說明原因。 V BC 變動方式 生產可能線整體向內移動 □ 生產可能線整體向外移動 □ 生產可能線不會變動 多選題:每題 4 分,共 16分 221. 關於婚後的財產該如何分配,下列敘述哪些正確? (A)若採取分別財產制,則毋須負擔另一半的債 務 (B)若沒有特別約定,則採取法定財產制V(C)若採取法定財產制,則無須負擔另一半的債務 若採取法定財產制,則由妻子負擔家庭生活費用,若採取共同財產制,則須負擔另一半的債務 022. 王老先生有塊地,平常在農地裡同時栽種了南瓜與葡萄,若在資源、人力 與時間都不變的條件下,同時栽種兩種作物的組合如右表,關於栽種兩種 作物的機會成本敘述哪些正確?(A)生產乙組合南瓜的機會成本將大於生 產丙組合南瓜的機會成本 (B)隨著產量增加,生產南瓜與生產葡萄的機會 成本都有遞增的現象 (C)生產葡萄乙組合的機會成本大於丁組合的機會成 本從表中的數據可見,王老先生生產南瓜與葡萄的生產可能線為一條 直線(E)隨著葡萄產量增加,背後要放棄的南瓜產量也將越來越少 組合 南瓜|葡萄 甲 1 14 12 (3) 9 43 ( )23. 花花同學利用彈性學習時間完成了一部漫畫的創作,除了上傳學習歷程檔案 50 NE 外,同學也打算委託出版社出版,印 1,000 本到市場上銷售。別班同學聽到了這個消息表示羨慕又敬 佩,並針對這件事情提出討論,以下哪些同學的想法是正確的? (A)甲:「同學委託出版社出版漫 畫,此契約屬特種交易,須符合契約應記載及不得記載之事項。」(B)乙:「如果真的出版,我一 定會親自去書局買一本捧場,雖然我有7天鑑賞期,但我一定不會退貨。」(C)丙:「漫畫出版後, 1 原因 時間(資源)變少,能做的題目都變少了 乙丙丁 戊 (6) 5 0

求解1的B

tion adv. 驚人地 47 From Japan to the World 2022 apan's most famous traditional food, sushi, has satisfied people's appetites around the world. We usually think of sushi as bite sized slices of raw fish laid who eat sushi love it. The sushi we eat today, however, is quite different from that many are unable to accept the thought of eating uncooked pieces of fish. But those on rice. Eaten as a snack or main course, sushi is light and healthy. At first sight, of the past. Long before the invention of refrigerators, in Japan, freshly-caught fish was preserved in salt and put in rice to keep it edible for a longer time. This process gave the fish a strong and sour flavor, and also kept it from rotting. After it was preserved, people ate the fish without the rice.com me novell Later, as methods of maintaining food improved, rice vinegar replaced the preservation process. And instead of throwing away the rice, the Japanese began eating it with the fish. Since the preservation process was no longer needed, sushi became quick and easy to prepare and eat. IW BDE As sushi's popularity exploded in Tokys across Japan, and around the globe, 15 a Japanese man named Yoshiaki Shiraishi who had problems running a small sushi shop by himself, invented kaiten sushi, or conveyor belt sushi. His first kaiten sushi restaurant opened in 1958 in Osaka, Japan, and quickly caught on. 5 10 In kaiten sushi restaurants, plates of sushi move around on a conveyor belt, and customers take whatever 20 catches their eye. This type of restaurant also makes it easier for those who don't speak Japanese to fully enjoy sushi. Through constant improvement, Japan has spread sushi, its gift to the world, all over the place. 139. 25

求解？

三 閱讀測驗(20%) The king snake is a harmless reptile. It has developed a color pattern that is almost the same as that of the poisonous coral snake. Its distinctive red, yellow, and black bands are enough to make predators hesitant to eat it. Similarly, many flies have the same black and yellow stripes as bees and wasps. Most predators will stay clear, though in fact these flies have no stingers. But surely the most innovative of these animals is the mimic octopus. It can completely change not only its colors but also its body shape in order to look like the venomous lionfish, the sea snake, and several other dangerous creatures in the ocean. These examples show that animals don't have to be an extreme danger to survive in nature. For these Batesian mimics, there's no shame in faking it! ( ) 12. What does the passage say about the king snake? (A) Its poison is fatal to small animals. (B) It is as dangerous as coral snake. (C) It has a unique stinger in its tail. (D) It has a colorful appearance. ( ) 13. Based on the passage, what will a mimic octopus do when a predator approaches? (A) It will copy the predator's movements. (B) It will pretend to be another creature. (C) It will release a dark-colored ink. (D) It will launch a fierce attack.

想請問為什麼掛號內的算式不是像白紙裡寫得那樣呢？

再為此數 基礎7 利用遞迴關係式找出一般項 《神氣確 |9=2 數列〈a>的遞迴關係式為, 1 On+1 + an 證明之。 n+1 'NEN 試推測的一般項並以數學歸納法