數學與統計 大學 2個月以前 右下角是解答，但我一直算不出來，請幫我解答一下，還有過程 Apply elementary row operations to transform the following matrix first into echelon form and then into reduced echelon form. 64-5 3 -6 3 -7 -7 8-589 3-9 12-96 15 1 0-2 3 0 -24 0 1 -2 2 0 -7 000014 62 62 待回答 回答數: 0
數學與統計 大學 3個月以前 請問這個的嚴格證明怎麼寫，問了很多次ai還是看不太明白...... 5x-2 (1)證明 limx=20<x-4 x-4 7 (x-2)(x+2) 37 尚未解決 回答數: 2
數學與統計 大學 7個月以前 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 尚未解決 回答數: 1
數學與統計 大學 7個月以前 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 待回答 回答數: 0
數學與統計 大學 8個月以前 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 待回答 回答數: 0
數學與統計 大學 8個月以前 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 待回答 回答數: 0
數學與統計 大學 11個月以前 這題的解答給的是C, 該怎麼求出，感謝！ 6. Find the volume of the solid whose region is the intersection of the cube {(x, y, z) : |x| ≤ 1, |y| ≤ 1, || ≤ 1} and the ball {(x, y, z) = x² + y²+ z² < 2}. 16 (A) 32(√2-1). (B) (8-√2). 3 16 (C) (10- √2)TT. (D) √√2π. 3 32 3 待回答 回答數: 0
