所屬科目:研究所、轉學考(插大)-微積分
2. A function f on R is odd if f(-x)"=-f(x) for all xR while it is even if f(-x) = f(x) for all x R. Suppose that g and h are two functions on R.
3. Consider the integral dA, where D is the region bounded by two concentric circles centred at the origin with radi r and 1 respectively, 0<" < 1. Let . (a)Jpn is convergent if p < 1. (b) Jp is convergent if 1 <p <2. (c) Jp is convergent if 2 < p.
Among the above three statements, how many of them are true? (A)Only one.(B) Only two. (C)All of them. (D) None of them.
4. Let (a)(b)(c)Among the above three staterents, how many of them are true? (A)Only one.(B) Only two. (C)All of them. (D) None of them.
5. (a) The series is absolutely convergent.
(b) The series is absolutely convergent. (c) The series is absolutely convergent.
6.=__(6)__.
7. Let f(x)= sin(y+xcosy) dy. It follows that f'(0) = __(7)__.
8. Let f(x) = arctan .The graph of f has a horizontal asymptote represented by the equation __(8)__ and the global minimum value of f is__(9)__.
9.d= __(10)__.
12. Let C be a variable path in the ay-plane of arc-length 1 starting at the point (,1) and ending at the point (a,b). Suppose that G(a,b) := .dr, where f(x,y) := arctan , is a function in a and b. Then, G attains its maximum at a =__(14)__ and b =__ (15)__ and the maxinum value of G is __(16)__.
13. If a and b are positive constants and if max{p,a} denotes the maximum between the numbers p and g, the iterated integral dy dx= __(17)__.
(b) If S1is the boundary surface of E (including all faces) endowed with the outward orientation, one has curl Fㆍ dS = __(19)__
(c) If S2 is the surface obtained from S1by removing the face in the xy-plane while keeping the orientation from S1 on all other faces, one then has curlF. dS =__ (20)__.