請問有更快的解法嗎🙏🏻

76 單元9 二維數據分析 3.某次體操比賽,X、Y、Z三位評審對 五位選手的表現評分如右表,則試比較 X 67 X、Y評分的相關係數與X、Z 評分 的相關係數的大小為 Y 701 Z 7 6 選手1 選手2 選手3 選手4 選手5 手89 4 |手896 5. 7 8 Y₁ >Y "Mx = 2== 1-(3), 2.0-(a) 0(0) 2.0 (8) 1(A) 582= 49+6+49+64+365x1156 7255 425 1740 496 6200 212 725 1560 424 5 My = 37 5 Mz=34 5 S0x= 36+6++36+16+64-5x 1024 = 16-124 sb = 5 255 =234- 1156 5 Sxz = 42+48+424-32448-1588x5 212-1088 -28 5 5300 544 = 49+ 5+ 49+ 25 +81-54 176974 = 285- 56 5 1369 5 £55 Say= 42+ 72+42+0+72-1184x5 =248-1184 56 5 VAY 5 *55 58,782 4.散布圖中有五個樣本點:A(2,1)、B(3,8)、C(5,2)、D(5,4)、E(10,5),則去掉哪一點

第三格時態，看不太懂 答案是have been erected

still other (D) the butle by ancient tribes as a sort of astronomical calenda about lunar and solar eclipses They are believed to 3 The tribesmen may have used them to make the 4 except that we have no idea why they would have been so much interested in eclipse Some think they may have been a temple, meant for religious or ritual ceremonies. 25m5100t the functions were, it remains a mystery just how those huge stones wer moved to the site and placed in such a circular arrangement. ts are still puzzled how the tribesmen managed to move the heavy stone columns. (C) phases (D) ratios boon bas (C) by accident A 1 (A) theses 2 (A) no longer (B) series (B) not only (D) as a whole 3 (A) erect (B) be erecting (C) be erected (D) have been ere A 4 (A) construction (B) predictin

求解這兩題🙏🏻

【例13】 設 x ∈R,試解方程式 [3x]+2[x]-5=0. 5 # 07;5<3x<6.35 <x<2 10<x<1 (3x)+2(x) = 5 2 3 5353x24 3 44 5 > 457x<5 183252 Sol11 【例14】設x∈R,試解方程式x²-x-[x]=0 n (3-2-1 €2 2 x= x < x < x = x+1. 54= x² = 2x50 Ly = x² = 2 x +1 70 LY 練習 23<3 0<X<\ or \<x<? 470 。 2 4<0 (x)=0. f of 470 x=00X (10) <0 @ 1= x²-x x²-x-1=C 21X-2 [2]=22 Salz: floor function 12~3 1.設x∈Z且滿足x=4,則滿足條件的x共有幾個?

為什麼這時積分變數t變換為τ時，積分範圍不會改變呢

例題1-7: Given a function f(t) and its Laplace transform F(s), what is the Laplace transform of the delayed version of f(t) by 2>0 units of time, i.e., f(t−2)? You must give a +b(1) proof of your answer. 解 根據拉氏轉換的定義,F(s)=L[f(t)]=ff(t)e="d,所以 【85 中興電機】 [ƒ (1-2)] = f(t−2) e™ dt = f(t-2)e(-) d(-2) -2s 【大專告 201 0 0 C-TER -λs (a)D -ST =eft-)e-d(1-2) = e | f(t)e dt = eF(s) 0

求這題詳解（鉛筆部分也是題目）

3. Express the function in the form fogoh. R(x)=x-1 [§1

不知道怎麼畫 教教我吧 謝謝🙏

8. Sketch the graph of a function y = f(x) that satisfies the following con- ver: ditions: f(0) = 0, lim f(x) = 0, lim f(x) = lim f(x) = ∞ xx x-1- x-1+ lim f(x) = lim f(x) = =-〇〇 x-1+ x-1-

求這三題的過程 謝謝！

L000 In exercises 37-39, determine values of a and b that make the given function continuous. zeros at f(x) #C Some nu Theorer 2 sin x if x < 0 unction continu- X nction should be 37. f(x)= a if x=0 bcosx if x>0 52. For fo Does t

感覺這題要用反函數

Finding Values In Exercises 28-30, find f-1(a) for the function f and real number a. Function 30. f(x) = x³ - Real Number 4 x > 0 a = 6 X

請問綠色框起來的是什麼意思

example.o A,B: sets, |A|-|B|=n<∞ A function f : A → B is one to one Proof (F) Suppose 39, #az & fears = fiaz) : 充分必要 if and only if it is onto. 7-1-4 3 | { bib = fca, for a EA & 979, 192}|≤n-2 =|f(A)| = h-1 < |B| 7 f is not onto Proof

想問螢光筆的地方（第12題），不懂為什麼是填where 附上詳解，請大大幫忙🙏

英文考科 二、綜合測驗(占10分) 說明:第11.題至第20.題,每題1分。 第11.至15.題為題組 2 min 17sce 第2 頁 共10頁 Music is more than recreation. The use of music in human medicine has become increasingly popular Studies show that music can enhance cognitive function in stroke patients and reduce patients' 11. during their medical examinations. Likewise, music has been proven to offer aids in the recovery of pets, creating a calm, warm and relaxing space for their post-surgical recovery. where (To dig into what kind of music might benefit felines during veterinary visits, a study 12. researchers experimented with 20 domestic cats was conducted by Hampton and his colleagues, from the Schools of Veterinary Medicine at Louisiana State University in Baton Rouge.] The felines were 13. to cat-specific music, classical music, or no music at random veterinary visits, 2 weeks apart. The results were good news for the cats in the study. 14. surrounded by cat-specific music, the cats appeared to be less stressed during the examinations. The experiment showed that 15. the welfare, th cat-specific music is something that feline creatures cannot do without during their vet visits. So, if you make an appointment for your cat next time, try playing some special tunes beforehand to calm it. , 11. (A) injection DA 12. (A) that C 13. (A) attracted 14. (A) That is BD 15. (A) in case of 第16至20頭光頭組 (B) anxiety (B) why (B) confined (B) After all (B) in terms of (C) medication (C) how (C) exposed ((C)Nonetheless on behalf of (D) treatment (D) where (D) opposed (D) Accordingly ((D) in addition to