數學與統計 大學 約1個月以前 想請問這題，是清大先修課（微積分）的題目！ 有點看不太懂詳解⋯⋯ 非常感謝！>< 微積分 w1 ex02-01q3 (單選題) Let f (x) = 2x, c = 1, = 0.1, L = 2, pick up an appropriate positive number 8 from the following options such that if 0 < |x − 1| < 8, then |f(x) − L| = |2x − 2| < € = 0.1. ○ 8 = 4 O 8 = 0.049 8= 0.051 8 = 0.1 解答: "8=0.049 " 詳解: Observe that | 2x-21 = 2|x1| < 0.1 = >> |x1|< 0.1 = 0.05. 2 Hence for &= 0.1, we can take any positive number 8≤ 0.05, such that if 0 < |x − 1| < 8, then |f(x) – L| = |2x-2| 2x 128≤ 2 0.05 = 0.1 = ε. 已解決 回答數: 1
數學 國中 約1個月以前 跪求（2）怎麼算༼;´༎ຶ ༎ຶ༽༼;´༎ຶ ༎ຶ༽༼;´༎ຶ ༎ຶ༽༼;´༎ຶ ༎ຶ༽༼;´༎ຶ ༎ຶ༽༼;´༎ຶ ༎ຶ༽༼;´༎ຶ ༎ຶ༽༼;... 繼續閱讀 佰法①過O作直線LLOA 在L上取OB=3OA,連接AB ③以O為圓心,AB長為半徑畫弧, 與數線正向交於P點,則P即為所求 B P 牛刀小試 1. 如右圖,坐標平面上,已知O(0,0)、A(17,0)、P(12,9)三點,則: (1)以為圓心,OP為半徑畫弧,交y軸於B點,則B點坐標為 (0,15) (2)以P為圓心,PA為半徑畫弧,交x軸於C點,則C點坐標為 0 P(12,9) O(0,012 (17,0) 5. 右圖 步驅 步馬 步需 步 尚未解決 回答數: 1
英文 國中 約1個月以前 求解 8. Lisa: Dad, we have to go to church tomorrow, ? Dad: Yes, tomorrow is Saturday. After that, let's go to a movie. A) haven't we (C) won't we have to (B) aren't we (D) don't we 已解決 回答數: 1
英文 國中 約1個月以前 求解 B 6. Anita enjoys watching the waves break against the rocks, and so BB 918 2 I. (A) do (B) am (C) will (D) have 1295 ever been to South Korea, and his children. 已解決 回答數: 1
英文 國中 約1個月以前 求解 牙 9. Everyone was talking about Jasmine at the party last night because she dressed than all the other girls. 2m() (A) beautiful 20 om nogoo of og of tow llite 1 di biofle 'n I (B) more beautiful 11(A) (C) more beautifully (D) the most beautifully 192010 (A) 已解決 回答數: 2
數學 國中 約1個月以前 國二數學 m-Calc ... Copper panediol)。 ament (Chlorphenes cassium)、Aqu 5外生物科技(股)公司 七-75ソ二ソ5(株) 店區中正路495號7樓 份有限公司 $150號13樓之5 188 三、非選擇題-說明與計算:每題10分,共40分 《國中實力評量·數學4》—18 1. 如右圖 3. 如右圖,正方形 9 △ABC中,∠B=90°,AC= 25 L E 15 25,AB=15,直線L為AC 的中垂線, 且交BC於D點,則BD=? 【解】 20 B =DF,則: (1) 說明△AEF (2)若∠BAE: 少平方單 【說明】 已解決 回答數: 1
英文 國中 約1個月以前 這題為什麼選B 7. It has not rained for weeks. The weather report says that there may (B) tomorrow. (A) rainbow (C) be rainy (B) be rain (A) EA (D) have rain (8) zi gnidouot lls jon () 已解決 回答數: 2
英文 國中 約1個月以前 求解😭😭🥹🥹 WOLKS there. 【弘道 mes 興】 B (A) slow; noisy slow; noisily 17. The Chinese boy often 【海山】 (B) slowly; noisy (D) slowly; noisily in the library; he's a really wonderful student. (A) studying hard (B) studies hard 18. A: You paint the eggs so BA library; BUJOR MAXE (C) studies hardly (D) study hardly ! Can I take a look at them? B: Sure. These eggs are for Easter. Be careful (A) beautiful; don't well; not to 【石牌】 drop the eggs. (B) well; don't (D) beautifully; not $ 19. 19. Study and you will go to a good school. 【古亭】 (A) hardly (B) hard (C) careful (D) hardest A 20. We play volleyball We need more practice. 【海山】 (A) badly (B) well (C) terrible (D) hardly h 21. Vicky: Did you win the game last night? 【金菜】 尚未解決 回答數: 1
英文 國中 約1個月以前 為什麼C不行啊 course that's not true many people have wives. Karl: I see. How about things like cellphones? You don't feel comfortable-saying “my cellphone" either? Shin: Well, no. However, we also use uri when something's shared by a group of people, just like in English. When we Koreans speak English, we would say "our country" because, for us, saying "my country" sounds like I own the country myself. Karl: So, there isn't a word for "my" in Korean? Shin: Yes, we have the word no, but we seldom use it - if you say nae, it sounds like you only think about yourself. Karl: Then, I guess the English world isn't very friendly to you. Everything is "my, my, my." Shin: Yeah... maybe a little. Karl: But you know I'm not like that when I say "my," right? You're "my" friend and I care about you. Shin: I know. th S C Korean 韓國人;韓語 Korea 韓 35. Why did Shin say "our wife ado it" 1 尚未解決 回答數: 1
生物 高中 約2個月以前 請問這題（a) 那個染色體的意思不是代表它已經從染色質變染色體 經過複製了嗎？ 可以視同姊妹染色分體嗎🙏🏻 (Abcdac (B)bcade (Core国时來如果色体的連接處 下列關於遺傳物質構造的敘述何者正確? (A)染色體的中央區域稱為中節(B)染色質等於DNA (C)姊妹染色分體其中一條來自父方,另一條來自母方 蛋白 (D)染色質由DNA和蛋白質構成 用 出有细胞分裂不同時期的染色體戀于賣圖 月經週期中 每日 已解決 回答數: 1
