How to practice concept:power-series

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–2 of 2. Imported answers require independent review unless marked reviewed.

Topic practice 2 questionsPage 1 of 1

Question 35

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MANAT1 markNeeds review
For

, the power series

converges at

and diverges at

. Then the radius of convergence of this power series is equal to ________. (answer in integer)

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Question 42

Open question
MAMSQ2 marksNeeds review
Let

and

be an analytic function given by the power series

, where

and

for

. Consider the following statements:

: If

, then

is one-one in some neighbourhood of

.

: If

, then

is a closed subset of

.
Which of the following statements is/are correct?
Your answerSelect all correct options. You can choose more than one.

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