课程名称︰微积分乙下
课程性质︰必修
课程教师︰李聪成
开课学院:
开课系所︰
考试日期(年月日)︰2016年4月21日
考试时限(分钟):160分钟
试题 :
请将每一步骤表达清楚,不可以只写答案。
1. Evaluate the integral.
               4x+1
       ∫ ─────── dx
           2x^2+4x+10
2. Evaluate the integral.
       ∫ (x^2)lnxdx
3. Evaluate the integral.
                cosx
       ∫ ───────── dx
          sinx(4+sinx)^(1/2)
4. Evaluate the definite integral.
        2    ______
       ∫  √4-x^2  dx
        0
5. Find the sum of the series.
       ∞     1
       Σ  ────
       n=1  n(n+2)
6. Determine whether the improper integral(瑕积分) converges or diverges,
   and if it converges, find its value.
       +∞     1
       ∫  ───── dx
       -∞    1+x^2
7. Determine whether the series converges conditionally(条件) or
   absolutely(绝对), or diverges.
       ∞             n
       Σ (-1)^(n) ────
       n=1           n^2+1
8. Determine whether the series converges or diverges.
       ∞       2n+1
       Σ  ────────
       n=1   n^2 (n+1)^(1/2)
9. Determine whether the sequence converges or diverges. If it converges,
   find the limit. Where
                n2^(n)
       an =  ─────
                3^(n)
10. Find the radius(半径) of convergence of the power series.
       ∞     (2n)!
       Σ  ───── x^n
       n=1   (n!)^2