GOLDEN INTERNATIONAL SCHOOL

XII B

HOLIDAY HOMEWORK

1. ACCOUNTANCY

During the vacation, students have to work on Ratio Analysis and Cash Flow Statement. The

data for these should be taken from Class XI project and continue with the project further.

The project shall require a student to analyze using analytical tools and the information

given in the Financial Statement is interpreted in a manner that correct and logical solution

is arrived at.

2. ECONOMICS

Students have to make project on one topic discussed in the class and registered for them.

Project shall be based on research work and analysis. Project is expected to be original and

backed with sources of data collection.

3. Legal Studies-

Qu-1. Make a report on your visit to an organization of your city which provides Legal Aid

and legal services .Interview different personals there and collect the information in which

matters and how do they provide legal aids and services.

Qu-2. Keep a note of the scheduled Lok Adalat in your city. Visit there on the said date and

watch the whole procedure. Make a report on it.

Qu-3. Interview various concerned people of the proposed matters like 1. Uniform Civil Code 2.

Tripple Talak 3. Amendments in Article 370 4. Exemption on Farmer’s loans

4. Computer Science-

1. Revise chapter-1 (Revision tour of C++) there will be a test in month of June.

2. Write the answers of questions given in worksheet no. 1, 2 and 3 in your class work

copy.

3. Re-create all the program taught in March and April month based on class and

object, function overloading and object oriented concepts of your text book.

5. Entrepreneurship –

During vacation students have to complete their projects on market survey and business

plan according to the topics decided by them and the guidelines issued to them individually.

6. Physical Education:-

Assignment:-

Select any one game from the following list

Basket ball, Football, Hand ball, Hockey, Kho-Kho, Volleyball which should cover the following

aspects of games

1. History of Games and Sports

2. Measurement of Play Field and equipment

3. Latest Rules and Regulations of the Game

4. Fundamental skills of the game

5. Important tournaments and venues

5. Important personalities and awards

7. English :

Read the novel Wise & Otherwise (Mrs. Sudha Murthy). Make a list of moral discussed in each story.

1. Novel – The Invisible Man

2. The Tiger King

3. Evan Tries an O – Level

4. The Rattrap

5. The Enemy

8. Business Studies.

During vacation students have to complete their projects according to the topics decided by them and

the guidelines issued to them individual

9. MATHEMATICS:

1. Product of the matrices 1

−12

[ 2 1 −1 ] = _________

2. Find a matrix A, if A + 2 31 4

= 3 −6

−3 8

3. If A + B = 1 0 22 2 21 1 2

and A-B = 1 4 44 2 0

−1 −1 2 then find A and B.

4. If A= 2 3 53 2 7

and B = 367

then find AB.

5. If A = 4 2

−1 1 ,Show that (A-2I) (A-3I)= 0.

6. If A = 4 112 6

, thn find inverse of A by using elementary transformations.

7. Find x and y satisfying � − 3 7

0 −5 =

2� + 5 70 3 − 7

8. If A= 1 23 4

, B= 2 14 2

and C = 5 17 4

then show that A(B+C) = AB + AC.

9. Using matrices, solve the following system of equations:

x+2y+5z=7; x+3z=11; 2x-3y=1

10. Using properties of determinants, prove that 3� −� + � −� + �

−� + � 3� −� + �−� + � −� + � 3�

=3(a+b+c)(ab+bc+ca)

11. Evaluate cos(tan‾¹3/4).

12. Write the function, cot‾¹ (√1+x² -x) in simplest form.

13. Solve the following determinant for x: � + 4 2� 2�

2� � + 4 2�2� 2� � + 4

=0

14. Using matrices solve the following system of equations:

x+y+z=3; x-2y+3z=2 and 2x-y +z=2.

15. Prove that, Sec² (tan‾¹2) + Cosec² (cot‾¹3) =15.

16. Solve for x: tan‾¹(���

���)+tan‾¹(

���

�) = � + ���‾¹ (−7).

17. If A= 1 2 22 1 22 2 1

then find A‾¹ by using elementary operations.

18. Show that the points (a+5, a-4), (a-2, a+3) and (a,a) do not lie on a straight line for any value ofa.

19. Find that equation of the line joining A (1,3) and B(0,0) using determinants and find k if D(k,0)is a

point such that area of triangle ABD is 3 sq. units.

20. Using matrices solve the system of equations: 5x + 3y+ z=16; 2x + y+ 3z=19; x + 2y + 4z=25.

21. Evaluate the determinant, 3� � 15� −2� −27� 3� 3

22. Prove that, 4(sin‾¹1/√10+cos‾¹2/√5) =�.

23. Show that tan (�

� sin‾¹

�

� ) =

��√!

� .

24. If (tan ‾¹x) 2 + (cot ‾¹x) 2 ="#�

$.

25. Solve tan ‾¹ (x+1) + tan ‾¹ (x-1) = tan ‾¹ $

�� .