Questions 121–130 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 13 of 65

Question 56

Open question
MAMSQ2 marksNeeds review
For

, let

,

. Then, which of the following is/are TRUE?
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Question 57

Open question
MAMSQ2 marksNeeds review
Let

and

be provided with the respective Euclidean topologies, and let

be assigned the subspace topology induced from

. If

is a non-constant continuous function, then which of the following is/are TRUE?
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Question 58

Open question
MAMSQ2 marksNeeds review
Let

be an uncountable set. Let the topology on

be defined by declaring a subset

to be open if

is either empty or finite or countable, and the empty set to be open. Then, which of the following is/are TRUE?
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Question 59

Open question
MAMSQ2 marksNeeds review
All rings considered below are assumed to be associative and commute with

. Further, all ring homomorphisms map

to

. Consider the following statements about such a ring

:
P1:

is isomorphic to the product of two rings

and

.
P2:

such that

,

and

.
P3:

ideals

with

such that

and

.
P4:

with

such that

.
Then, which of the following is/are TRUE?
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Question 60

Open question
MAMSQ2 marksNeeds review
Let

and

be field extensions which are not algebraic. Let

be algebraic over

and

. Let

be the subfield of

generated over

by the coefficients of the monic polynomial of minimal degree over

which has

as a zero. Then, which of the following is/are TRUE?
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Question 61

Open question
MANAT2 marksNeeds review
Consider the inner product space of all real-valued continuous functions defined on

with the inner product

. If

,

is orthogonal to all the polynomials having degree less than or equal to

, with respect to this inner product, then

is equal to _____ (in integer)

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Question 62

Open question
MANAT2 marksNeeds review
For

, consider the quadratic form:

Let

be the symmetric matrix associated with the quadratic form

with respect to the standard basis of

. Let

be a non-zero vector, and let

where

is the

identity matrix. Then, the value of

is _____ (in integer)

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Question 63

Open question
MANAT2 marksNeeds review
Let

be distinct non-zero real numbers, and let

be a polynomial of degree less than 5. If the function

satisfies Morera’s theorem in

, then the value of

is equal to _____ (in integer)

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Question 64

Open question
MANAT2 marksNeeds review
Let

be a group with identity element

, and let

be such that the following hold:
(i)

,

,
(ii)

,

, and

.
Then, the least positive integer

for which

is _____ (in integer)

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Question 65

Open question
MANAT2 marksNeeds review
Let

and

be two metric spaces with

and

If the open ball centred at

with radius

in

is equal to the open ball centred at

with radius

in

, then the value of

is _____ (in integer)

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