有人解得出這三題偏微分題嗎？

Question_2 1.3x4y² ex¹³ 3 3 2.4x³y³4x³y³ 3.3x4y²e 3x4y² 4.4x³y³ ex¹y³ a dy (ex²y³) =

請問這題要怎麼算？

7. (10 points) Solve the given initial problem: dy dx x=0. yex² x = where y=1 when

求求這題詳解

Compute lim x²+2 X-9 √x-3

想問這題怎麼算

28. A trough is 6 m long and its ends have the shape of isos- celes triangles that are 1 m across at the top and have a height of 50 cm. If the trough is being filled with water at a rate of 1.2 m³/min, how fast is the water level rising when the water is 30 centimeters deep? goal: dh dt

想問這題要怎麼算🙇‍♀️

37. Consider a sample with a mean of 30 and a standard deviation of 5. Use Chebyshev's theorem to determine the percentage of the data within each of the ranges which follow. LO 5 a. 20 to 40 b. 15 to 45 c. 22 to 38 d. 18 to 42 e. 12 to 48

求18,19答案🙏

的 分析圖形 18-19 題,畫出函數圖形, 並求其極值、反曲點和漸近線。 1 18.f(x) = 2-e 19. f(x) = = re- 初主程式的

微積分 這個怎麼寫阿

f dx S It sinx

求大神教我 我需要詳解

n +{sin (²) (cos()} = a 4n n k=1 5. Suppose that lim n-x of a. (A) 1. (B) 2. - (C) 4. (D) 8. = a · In(√2+1). Find the value

要用分割的方式求！答案是116/3

EX: S1 X+3x+1 dx sol:先將[24]n等分 分割,則共同寬度 Xi = 42 = 2/ 2 情 56x+3x+dx = d *[(x+3(2+2)x1)+(2+2+3(4+2磅)+1) n→∞ + ((2+3 · 1² + 3 (2+3· 2 ) +1 ) + ... + ((2+n·23³²+ 3(n. 2 ) +1]

大二統計學 請問畫黃色的部分要怎麼算

268 CHAPTER 6 The Normal Distribution and Other Continuous 6.5 Given a normal distribution with = 70 and o = 20, what is the probability that a. X > 110. b. X < 10. c. X< 70 or X > 130. d. Between what two X values (symmetrically distributed around the mean) are 70% of the values. 8 6.6 Given a normal distribution with μ = 30 and σ = 4, what is the probability that a. X > 38. b. X < 25. c. Find the X value such that the area to the left of X is 5% of the total area under the normal curve. d. Between what two X values (symmetrically distributed around the mean) are 40% of the values? P(Z > 2) = (1-0,9094 = 00228 P(25-1.2²) 011056 27:25-30 4 1125 5x1165 Z=30+4 1-905=0.95 (₁28-1 46.64 = 3