136.271

Assignment 3: Section 9.8 and Uniform Convergence

(Due April 7 in class)

Note: show your work; a naked final answer is not worth anything.

 

 

1.

(a) Use the binomial series to expand .  Simplify your answer.

           

(b) Use part (a) to find the sum of the series . (No marks if other methods are used.)

 

 

2. Given the sequence of functions  find the pointwise limit  and then show that the sequence  converges uniformly to .

           

(a)  over the interval [0,1].

 

            (b)  over the interval [1,2].

 

 

3. Given the sequence of functions  find the pointwise limit  and then show that the sequence  does NOT converge uniformly to .

 

            (a)  over the interval

 

            (b)  over the interval [0,1].