How to practice Complex Analysis

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 1–10 of 54. Imported answers require independent review unless marked reviewed.

Topic practice 54 questionsPage 1 of 6

Question 17

Open question
MAMCQ1 markNeeds review
Let

be defined by

. Which one of the following is TRUE?
Your answerChoose one option.

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Question 18

Open question
MAMCQ1 markNeeds review
Let

denote the unit disc in the complex plane

. Let

be an analytic function which satisfies

. Then which one of the following is a possible value of

?
Your answerChoose one option.

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Question 35

Open question
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 38

Open question
MAMCQ2 marksNeeds review
The value of the contour integral

, where

, oriented in the counter-clockwise direction, is equal to
Your answerChoose one option.

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Question 39

Open question
MAMCQ2 marksNeeds review
Let

. On which one of the following domains, does

represent an analytic function?
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Question 50

Open question
MAMSQ2 marksNeeds review
Let

and

be two Möbius transformations defined on the unit disc

. Consider the following statements:

;

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

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Question 59

Open question
MANAT2 marksNeeds review
The number of zeros of the complex polynomial

in the annulus

is equal to ________. (answer in integer)

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Question 33

Open question
MANAT1 markNeeds review
Consider

where

is oriented positively as a simple closed curve. Then, the value of

is equal to _____ (in integer)

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Question 41

Open question
MAMCQ2 marksNeeds review
Let

be the Möbius transformation that maps the points

,

and

conformally onto the points

,

and

, respectively, in the extended complex plane. If

maps the circle centred at

with radius

onto a straight line given by the equation

, then the value of

is equal to
Your answerChoose one option.

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Question 42

Open question
MAMCQ2 marksNeeds review
Let

and

, where

denotes the imaginary part of

. Let

be the set of all bijective analytic functions

such that

. Then, the value of

is
Your answerChoose one option.

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