May- 2012 Bachelor of Computer Science (BCA) Semester- I BC0033- Basic Mathematics – 4 Credits (Book ID: B0675 )

Assignment Set – 1 (60 Marks)

Answer All Questions

6 X 10 = 60 Marks

1. Prove that the intersection of any two subgroups of a group is a group. 2. Prove that the sum of the degrees of the points of a graph G is twice the number of lines. 3. Find the mean, median and mode for the following: Mid value Frequency 15 2 20 22 25 19 30 14 n+1

35 3

40 4

45 6

50 1

55 1

4. Prove that nC r + nCr-1 =

Cr

5. If birth to a male child and birth to a female child are equiprobable, what is the probability that at least one of the three children born to a couple is male?

6.

Simplify:

tan ( 180 A ) sec ( 180 A ) cos ec ( 90 A ) sec ( A ) cot ( 90 A )

May- 2012 Bachelor of Computer Science (BCA) Semester- I BC0033- Basic Mathematics – 4 Credits (Book ID: B0675 )

Assignment Set – II (60 Marks) Answer All Questions 6 X 10 = 60 Marks

x lim a 1 1. Show that x 0 x

log e a

2. Find the angle of intersection of the cardiodes r = a(1+cos ), r = b(1 – cos ). 3. Show that

/2

0

sin 6 cos 3

2 63
.

a ib 4. Show that tanh 2x = cos ilog a ib

5. Apply Crout’s method to solve the equations : 3x+2y+7z = 4, 2x+3y+z = 5, 3x+4y+z = 7 2 4 6 ......... to 3! 5! 7!

...Solved IGNOU BCA1st Semester Assignmnemts
Course Title Assignment Number Maximum Marks Last Date of submission : : : : Fundamentals and PC Software BCA (1)-611Assignment/2010 25 30th April, 2010 (For January Session) 30th October, 2010 (For July Session)
There are five questions in this assignment. Answer all the questions. You may use illustrations and diagrams to enhance explanations. Question1. Explain classification of computers. Also suggest a suitable operating system (s) for the following activities: • • • Network Computing Multimedia Applications Database Management System
Identify the requirements on operating system for the above situations. Give reasons in support of your selection.(5 Marks)
Solution 1: Computers are available in different shapes, sizes and weights, due to these
different shapes and sizes they perform different sorts of jobs from one another. They can also be classified in different ways. All the computers are designed by the qualified computer architectures that design these machines as their requirements. A computer that is used in a home differs in size and shape from the computer being used in a hospital. Computers act as a server in large buildings, while the computer also differs in size and shape performing its job as a weather forecaster. A student carrying a laptop with him to his college is different in shape and size from all the computers mentioned...

...August 2012
Bachelor of Business Administration - Semester 1
BB 0032/BBA 101: ‘Communication Skills’ (4 credits) (Book ID: B1497)
ASSIGNMENT- Set 1 Marks 60
Note: Each Question carries 10 marks. Answer all the questions.
1. Explain the process of communication. What is the role of communication in business? 2. What are the various barriers to the Listening Process? Why do you think listening plays a vital role in the organization? 3. What is internal communication and what are the reasons for having it? List the various channels and stake-holders of internal communication. 4. What do you mean by a report? Explain its important features. Note the differences between a performance appraisal report and confidential report. 5. How do verbal, vocal and visual components of communication impact a presentation? What are the points that one needs to keep in mind while preparing audio visual aids? 6. a. With the growing competition and volatile market conditions, jobs are not secured as they ought to be previously. What are the factors looked into by the prospective employers? b. Do manners and etiquettes play an important role in the interview process?
August 2012
Bachelor of Business Administration - Semester 1
BB 0032/BBA 101: ‘Communication Skills’ (4 credits) (Book ID: B1497)
ASSIGNMENT- Set 2 Marks 60
Note: Each Question carries 10 marks. Answer all the questions. 1. What are the various types of...

...term of form six.
MANUAL FOR COURSEWORK
The manual contains regulations and guidelines on
the conduct and assessment of coursework which
needs to be implemented by the school as well as
coursework assignments.
The school authority is responsible to make copies of
Part 2: Student’s Manual For Mathematics (T)
Coursework of this manual to be given to the
students.
Student are required to complete the coursework
which comprises three assignments in the respective
terms.
IMPLEMENTATION
Students must carry out each assignment
individually. Plagiarism will be penalised.
Teachers must monitor the progress of the
student’s coursework. It is, however, not
acceptable for teachers to give detailed
suggestions as to how the work may be improved
to meet the assessment criteria.
Examples of unacceptable assistance are as
follows:
•
detailed
omissions
indication
of
errors
or
•
the provision of detailed outlines,
analysis, discussion, or conclusion specific to the
coursework tasks
•
personal intervention to improve the
presentation or content of the coursework
ASSIGNMENT REPORTS
A complete assignment report should be structured
as follows:
(a)
Introduction
(b)
Methodology
(c)
Results
(d)
Conclusion
ASSIGNMENT REPORTS
(a) Introduction:
•Description of the problem (including the title)
(b) Methodology
•The application...

...TASK 1: GETTING A HAND ON DATA
ORGANISING YOUR DATA:
A. Summarise your results in a table.
Name
Age
Writing Hand R/L?
Writing hand angle
Non-writing hand angles
Right (√)
Left (√)
Zac Taylor
15
√
50o
50o
Eric Na
17
√
55o
52o
Damian Bielinski
15
√
49o
48o
Ashley Vandenput
15
√
47o
50o
Tolga Pasin
15
√
50.5o
53o
Corey Evans
15
√
52o
50o
Romy Abbott
14
√
50o
53o
Candice Shadford
15
√
45o
54o
Jess Dayus
14
√
50o
55o
Joel Dayus
11
√
49o
55o
Myriam Dayus
42
√
58o
45o
Toby Abbott
16
√
53o
52o
B. Arrange your data in numerical order.
C. Calculate the five number summaries and summarise this information in a table.
D. ANALYSING THE DATA:
a) Select three (3) categories from those above and construct parallel box plots from your five number summaries.
b) Provide printouts of the three parallel boxplots.
E. Write a 300 word (approx) detailed analysis of the parallel boxplots.
Twelve people were tested on the angles of their writing and non-writing hand. These people aged through from eleven (11) to forty two (42), the data obtained was put into tables and a box plot diagram. A box plot is a diagram used to represent the range, median and quartiles of a set of data values. The difference between males and females will be compared, along with the shape of distribution of the diagram and the range. The three sets of data that were...

...force holding them together. Since pressure equals force divided by the area of contact, it works out that the increase in friction generating area is exactly offset by the reduction in pressure.
In the experiment, it was proven and tested that area of contact does not affect the coefficient of friction. Based on data, area doesn’t affect much the value of the coefficient of friction since the values just differ in minimal aspects
It is strictly necessary to observe uniform motion through constant speed in order to have a constant value for the coefficient of friction. Coefficient of friction in general definition, where a body moves in equilibrium or in constant speed or motion, kinetic friction is essentially constant. According to the 1st Law of motion by Isaac Newton, if an object experiences no net force, then its velocity is constant. Therefore summations of forces in the vertical and horizontal are zero. By that we can then compute for the coefficient of friction.
CONCLUSION
Friction has a lot of applications in our daily life. It is friction in the tires that allows the car to stay on road and friction in the clutch that makes it possible to drive at all. The coefficient of friction on a block remains constant when the block travels in uniform motion. Since friction is in the direction opposite of the net force, the net force should always increase when the mass of the block increase in order for the block to overcome its state of inertia. A body...

...
The case between Beauty and Stylish involves concept of a valid contract, pre-contractual statements, express term and misrepresentation.
A valid contract is established between Beauty and Stylish when an offer is accepted and there is intention for both parties to create legal relations. An offer refers to the expression of willingness of the offerer to be contractually bound by an agreement if his or her offer is properly accepted. It has to be clear and certain in terms. It must also be communicated to the offeree before it is being accepted. In addition, the acceptance has to be unqualified, unconditional and made by a positive act. In the case of Beauty and Stylish, a positive act refers to the signing of the contract. All terms of the offer must be accepted without any changes and cannot be subjected to any condition, taking effect only upon fulfillment of that condition. When Beauty and Stylish enter into the agreement, they must intend to bind and bound legally to each other by their agreement. This is the intention to create legal relations between two parties. In the meanwhile, this contract must possess consideration. A contract must therefore be a two-sided affair, with each side providing or promising to provide something of value in exchange for what the other is to provide.
Every contract, whether oral or written, contain terms. The terms of a contract set out the rights and duties of the parties. Terms are the promises and undertakings given by each...

...Breaking distances:
Introduction:
Drivers must pay attention to their surroundings. This includes calculating the braking distance from the cars and objects around a driver. With this the driver can avoid accidents and can save lives and money. As shown in the picture above.
The prime factors that apply that have a big impact on the actual stopping distances in the real world:
Weather, road conditions, type and condition of vehicle, load etc , not to mention the age, health and mental ability of the driver. These all can affect the time taken to react and stop the vehicle.
In this investigation we will find distance the car traveled after the breaks were applied. There are emergency cases when the car needs to stop . However when the car breaks are applied, it will still move a certain distance known as the” breaking distance”.
The table below shows the breaking distances that were obtained at different speeds:
If we show the relationship of the speed and the breaking distance by plotting a graph like this one:
If we want to get an equation that helps us identify the relationship between the Speed and the breaking distance. We can see that the line makes a form of a parabola so we drive it through out calculator to get the following results:
We believe that the data is Quadratic because it goes in a parabola: Thus;
When: y=ax2 +bx+c
a=0.004
b=0.203
c=-6.428
Thus we come up with this equation:
Y= (0.004x X2) + 0.203xX -6.428
To make the...