Mathematics Elementary analysis

(*) You may work in teams of size no more than three. Each team should hand in

a single homework set, signed by all of the team’s members. All team members will

receive the same score for this homework. The value of this homework set is 15 points.

(**) Unless otherwise directed, you may use results proved in class notes or in Rudin,

but if you do, cite them as [Rudin, Theorem 5.7] or [Class Notes, Theorem 8.3].

(***) Write up your solutions in mathematical English (as in our class notes) and in

publication-ready form, preferably typed in some technical word processing language.

1) The comparison test

(which we will prove in class) says if 0

a

n

b

n

for su?ciently large

n

and if ?

1

1

b

n

converges, then so does ?

1

1

a

n

, and furthermore if ?

1

1

a

n

diverges, then so does ?

1

1

b

n

.”

Show how to use this test to compare the series ?

1

2

1

n

2

n

+1

and ?

1

2

1

n

1

:

5

. This will require you to

prove an inequality.

2) In this problem we will use the comparison test from problem (1) to prove the Limit Comparison Test

which says: Suppose

a

n

>

0 and

b

n

>

0 for all

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n

. If lim

n

!1

a

n

b

n

is a positive real number

L

, then

either both ?

1

1

a

n

and ?

1

1

b

n

converge, or both series diverge.” Here are the steps:

2-a) Given that

a

n

>

0 and

b

n

>

0 and lim

n

!1

a

n

b

n

is a positive real number

L

, explain how we know

that for su?ciently large

n

, we have 0

<

0

:

5

L <

a

n

b

n

<

1

:

5

L

.

2-b) Use 2-a) and a comparison test to show that if ?

1

1

a

n

converges, then so does ?

1

1

b

n

.

2-c) Use 2-a) and a comparison test to show that if ?

1

1

a

n

diverges, then so does ?

1

1

b

n

2-d) Use the limit comparison test to show that ?

1

2

n

n

3

1

converges. This will require you to specify a

series whose convergence or divergence you already know, and then show that the limit comparison

test applies, and ?nally make a conclusion about ?

1

2

n

n

3

1

.

3) The Integral Test

(which we will prove in class) says that if

f

(

x

) is a decreasing non-negative

continuous function whose domain includes [1

;

1

), then

1

1

f

(

n

)

converges if and only if

lim

T

!1

Z

T

1

f

(

x

)

dx

<

1

:

[Warning: lim

T

!1

R

T

1

f

(

x

)

dx

is sometimes written as

R

1

1

f

(

x

)

dx

but it must be evaluated

using limits rather than trying to use arithmetic with in?nities.] Use the integral test to determine

convergence or divergence of each of the following. You may assume that the functions involved are

continuous.

3-a) ?

1

1

1

n

1

:

5

3-b) ?

1

2

1

n

log(

n

)

where log(

n

) denotes the natural logarithm of

n

. [Hint: try

u

= log(

x

).]

3-c) ?

1

2

1

n

(log(

n

))

2

?
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56

ANMC domains

domains in order to identify why and how nurses need to be cultural sensitive when caring for this patient who you can decide could t

non-English speaking background (ARABIC). (10 minutes)

Refer to the ANMC domains in order to identify and discuss why and how nurses need

to practice in relationship to legal and lor ethical issues and to refer to either a health topic or an incident relevant to either a

maternity (eg l/F) or paediatric eventls (eg medication error). (10 minutes)

The tutorial presentation is to be interactive with the

audience but based on sound knowledge and research based evidence and demonstrate correct APA format for in- text and end-text

referencing

Evidence of research, using a variety of current credible resources

This will be a total of 20 mins, a power point

type slide show is acceptable however the presentation may be as creative as you like.

A lesson plan and copy of any power points or

any handouts is required to be presented to the tutor on the day of your presentation

Review the marking criteria to achieve maximum marks

for this assessment.

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