Students and Teacher's Forum

Students and Teachers Forum

Here, = x4 + x2 + 1 = (x4 + 2x2 + 1) – .....

2. Why is the province 3 most developed? Find out the reason and write them.

Province no. 3 extends in the area of 2, 0, 300 sq. km. This province covers 13 districts. This province is composed of mountainous and hilly regions. The development of infrastructure in the province is sound. This province is highly developed .....

3. Explain the economic feature of the province 4.

The people of this province are involved in agriculture, tourism, industry, services as well as foreign employment. This province collects the highest remittance. The major food crops grown in this province are paddy, maize, millet, wheat, .....

4. तलको उद्दरण्को ब्याख्या गर्नुहोस्:
मानिसमा मात्र हैन आन्य प्राणिमा पनि सेवा को पैचो तिर्ने प्रवृती पाइदो रहेछ ।

हामीले जसलाई सेवा गर्छौँ त्यसले पनि हामीलाई परेको बेलामा सहयोग गर्छ । .....

If R = {(x,y): y = x/2} and x Є {2,4,6}. Find the range of R.

Range = y = (2/2, 4/2, 6/2) [given, R = { (x,y): y = x/2 and x ⋳ (2, 4, 6)] = (1, 2, .....

6. If U = {1,3,5,7,9,11,13,15,17,19,21}
A = {3,5,7,11,13,17,19}
B = {3,9,15,21}
Find the following sets:
__ __
A ⋃ B
__
A - B

(A-B) ⋃ (B-A)
__ __
Is A ⋃ B = U ?

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7. Find the value:
tan85⁰-tan25⁰1+tan85⁰.tan25⁰

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8. Correct the following sentences:
a) Please can I have a kilo of meats?

Can I have a kilo of meat, please? or Please, can I have a kilo of .....

9. Solve by substitution method.

5x-3y=1115
2x+7y=2115

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10. What is the unit of work ?

The unit of Work is Joule in SI system. 1 joule = 1 kg m2 / s2 In CGS system unit of work is erg 1 erg = dyne .....

11. ‘नेपाल कविता’को मुख्य भाव लेख्नुहोस् ।

नेपाल कविताका रचनाकार युगकवि सिद्धिचरण श्रेष्ठ (१९६९ – २०४९) हुन् । उनी .....

12. What do you mean by a unit? Write its types.

The reference standard with which we carry out the measurement of any physical quantity of the same kind is called unit. The types of units are fundamental units and derived .....

13. Write any six important features of a society.

A society is a group of people living in an organized way in a certain territory. Some of the important features of a good society are: - Security - Affinity - Unity - Responsibility - Interdependence and cooperation. - Obedience to rules and .....

14. Find the value of x and y from the given figures.

Here, (x + 3°) +(x+ 5°) = 180° { being supplementary angle } or, 2x = 180° - 8° or x = 172°/2° or, x = 86° Again, 2y + 50° + 3y = 180° { being supplementary angle } or, 5y = 180° - .....

15. What is the SI unit of measurement of force?

Newton (N) is the SI unit of measurement of .....

16. In a hostel of 400 students it was dicovered that 70% liked to drink tea and 60% liked to drink coffee. If 10% students didnot like to drink tea and coffee, represent the information in venn-diagram and find the number of students who liked
a) coffee only b) tea only c) coffee d) tea e) both tea and coffee f) neither tea nor coffee

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17. नाम शब्द केलाई भनिन्छ ?

व्यक्ति, वस्तु, चिजबिज, द्रव्य, पदार्थ, स्थान आदिलाई बुझाउने शब्द नै नामपद हो । जस्तैः हरि, .....

18. Which are the countries falling in the frigid , temperate and torrid zones ?

The countries which are located in each of the two areas of the earth respectively north of the Arctic Circle and south of the Antarctic Circle lie in frigid zones. The United States(Alaska), Canada ( Yukon, the Northwest Territories and Nunavut), .....

19. If U = {1, 2, 3 ... 12}, A = {3, 4, 5, 6, 7}, B = {2, 4, 6, 8, 10} and C = {2, 3, 4, 6, 12}, list the elements of the following set operation.
(A∪B)∩C

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20. i. The length, breadth and the thickness of a brick are 18cm, 8cm and 5cm respectively. Find the area of the widest part of the brick. Also find the volume of the brick.

ii. The volume of water in a tank is 750 litres when it is full. If the length and breadth of the tank are150 cm and 50 cm respectively, find the height of the tank.

i. Given, Length (l) = 18 cm Breadth (b) = 8 cm Height (h) = 5 cm Area of the widest part (A) = l x b = 18 x 8 = 144 cm2 Volume of the brick (V) = l x b x h = 18 x 8 x 5 = 720 cm3 Thus, the area of the widest part of the brick is 144 .....

21. Which is the biggest planet?

Jupiter is the biggest planet. Fig: .....

22. Given U= {1,3,5,7,9,11,13,15,17,19,21}
A={3,5,7,11,13,17,19}
B= {3,9,15,21}. Find the following set:
A ∪ B

Here, A = { 3, 5, 7, 11, 13, 17 } B = { 3, 9, 15, 21 } A ∪ B = { 3, 5, 7, 11, 13, 17 } ∪ { 3, 9, 15, 21 } = {3, 5, 7, 9, 11, 13, 15, 17, .....

23. Ramesh buys a pen for Rs20and sells it at 20percent profit for what price should he buy it so that he can make 25percent profit by selling for the selling price.

Here, CP = Rs.20 Profit% = 20% So, SP= CP+20% of CP = 20+20/100 × 20 = Rs.24 Again, For the 2nd case; SP = CP + P% of CP or, 24 = CP + 25% of CP or, 24 = CP + 0.25CP or, 24 = 1.25CP or, CP = .....

24. Ramesh buys a pen for Rs 20 and sells it at 20% profit. For what price should he buy it so that he can make 25% profit by selling for the same selling price.

Here, CP = Rs.20 Profit% = 20% So, SP= CP+20% of CP = 20+20/100 × 20 = Rs.24 Again, For the 2nd case; SP = CP + P% of CP or, 24 = CP + 25% of CP or, 24 = CP + 0.25CP or, 24 = 1.25CP or, CP = .....

25. Mention the importance of federalism.

- Federal system can easily address the needs of all the citizens. This system is quite helpful in the countries like Nepal. Because Nepal is multi-ethnic, multi-religious, multi-cultural and multi-lingual .....

26.

अर्थशास्त्रको उत्पत्ति कसरी भयो ?

अर्थशास्त्र भनेको पैसाको शास्त्र हो । अर्थ भनेको सम्पत्ति र शास्त्र भनेको .....

27. अर्थशास्त्रको उत्पति कसरी भएको हो?

नेपालीमा भनिने अर्थशास्त्र संस्कृत अर्थशास्त्रबाट व्युत्पन्न भएको हो। यस .....

28.

अल्प विराम , अर्ध विराम , पूर्ण विराम , प्रश्नवाचक र उदगार चिन्ह प्रयोग गरेर पाँच वटा वाक्य लेख्नुहोसः

…cgf/sf] af]6Ú syfdf d .....

29.

अनारको बोट कथाको मुख्य पात्रको परित्र चित्रण गर्नुहोस ।

‘अनारको बोट’ कथामा मुख्य पात्रको चरित्र चित्रण ।

30. Prove: sin²A.cosec²A +tan²A = sec²A

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31. Prove: √(1+tan²A) . sinA = tanA

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32. Prove: cotA . √(1-cos²A) = cosA

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33. Prove: (1-sin²α)(1+tan²α) = 1

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34. If U = {1, 2, 3,.........12 }, A= { 3, 4, 5, 6, 7 }, B = { 2, 4, 6, 8, 10 } and c = { 2, 3, 4, 6, 12}, list the elements of the following sets operations.
d. (A∩B)∪C

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35. If U = {1, 2, 3,.........12 }, A= { 3, 4, 5, 6, 7 }, B = { 2, 4, 6, 8, 10 } and c = { 2, 3, 4, 6, 12}, list the elements of the following sets operations.

a. A∪B∪C and U- (A∪B∪C)

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36. Write the differences between central and provincial government.

There are three different levels of government in Nepal in federalism. They are federal(central), province and local government. The difference between federal and central government is shown in the table below: Federal .....

37. Prove: tan²A.cot²A.sin²A = 1 - cos²A

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38. If U = {1, 2, 3........, 12}, A = {3, 4, 5, 6, 7}, B = {2, 4, 6, 8, 10} and C = {2, 3, 4, 6, 12}, list the elements of the following set operations:
__________
A ∪ B ∪ C and A ∪ B ∪ C

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39. Mention the structure of the federal system of government.

Aaditya, in the federal structure, Nepal has been divided into 7 autonomous states. Each state has their own government. There is the decentralization of power, resources and means of production in the local levels. Similarly, the provision of .....

40. Without using calculator or table find the value :
Tan75^∘

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41. Prove: sinB.cotA.cotB.sinA = cosA.cosB

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42. Find the H.C.F of
a³ + b³and a⁴+ a²b²+ b⁴

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43. Metre is called a fundamental unit but ms^-1is called derived unit. Give reason.

Meter is called fundamental unit because it is independent of other fundamental units. 'ms-1' is called derived unit because it is derived from two fundamental units i.e. metre (m) and second (s). The unit which depends upon other .....

44. Prove: (cosX/cotX).cosecX = 1

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45. Prove :
sinA-cosA+1sinA+cosA-1=1secA-tanA

(sin A-cos A+1)/(sin A+cosA-1) =1/(sec A-tan A)

In L.H.S. divide above and below by cos A

L.H.S. =(tan A-1+secA)/(tan A+1-sec A)

=(tan A-1+secA)/(1-sec A+tan .....

46. Prove: (sinX/tanX).secX = 1

Here, LHS = (sinX/tanX).secX = {sinX/(sinX/cosX)}. (1/cosX) { tanA = sinA/cosA, secA = 1/cosA } = { sinX.cosX/sinX}. .....

47. tanA.cosecA = secA

Here, LHS = tanA.cosecA = (sinA/cosA).(1/sinA) ( tanA = sinA/cosA and, cosecA = 1/sinA) = 1/cosA = secA (1/cosA = secA) .....

48. What is untouchability? Why is it wrong?

Untouchability is a social practice in which definite group of people are dominated in the name of caste. This problem is based on caste system and in many cases, it is based upon the religious belief. The members of higher caste consider the .....

49. What is meant by social evils?Write very short answer.

Social evils mean the bad customs of four society such as dowry system, untouchabiltiy, Chhaupadi etc. Social evils are still prevalent in our Nepalese society. They have created gap among the people. They have delayed the development of our .....

50. There will be wide public participation in the federal system; How? Write in a sentence.

Definitely, there will be wide public participation in the federal system because it gives prime focus on the active participation of people in the decision-making process. Federal system address the rights, voices and choices of each and every .....