Students and Teachers Forum

Here, You might have learnt that, cos2X = (1 - tan2X)/ (1 + tan2X) Now, look at the LHS. LHS is in the form of cos2X where, X = 45 - A. Now, using the formula, we get, LHS = [1 - Tan²(45 - A/2)] / [1+Tan²(45 - A/2)]     .....

म राजा द्रुपदको विचारमा असहमत छु । मित्रतामा सद्भाव, आत्मीयता, हार्दिकताको .....

हस्तान्तरणः विद्यालयले विजेतालाई पुरस्कार तथा पदक हस्तान्तरण गर्ने काम सम्पन्न भयो .....

६. क) मित्रता कथा शारदा रमण नेपालद्धारा लिखित पौराणिक कथा हो । यस कथामा मित्रता .....

Everyone has the tradition of respecting their parents and seniors. Guests are always welcomed and respected. Teachers are considered as the god in all religious groups. Everyone respects nation and nationality. Different communities and ethnic .....

Bheja is socio-economic and religious organization famous in Magar community. While Guthi is a social, economic and religious organization famous in Newar .....

We know that Nepal is a multi-cultural, multi-lingual and multi-religious nation. According to National census 2068 BS there are 10 religions, 125 races and 123 languages in Nepal. So, Nepal is a country of several indigenous and ethnic groups who .....

Here, Length of carpet = Total cost / Rate                             = 3185/280 = 15.925m Again,   .....

An orphan as a child under 18 years of age who has lost one or both parents to any cause of .....

Prithvi Narayan Shah ascended the throne of Gorkha after the death of his father in 1799 BS at the age of 20. By this time, he extended his territory up to the Mechi river in the east, Gandaki in the west, Tibet to the north and Bihar of India to .....

Here,  Rate of cost = Total cost / Area                      = 3840/120 = Rs.32 per sq.m. Again,  Its new area = 120 + 10 = .....

Here,  Area of floor =  Area of carpet or, 4.5m x 6.5m = L x 1.2m             [ L = length of carpet  and width of carpet = 120cm =     .....

Please post the complete .....

Agriculture and industry are interdependent to one-another as agriculture supplies raw materials like sugarcane, jute cotton, oilseeds, tea, spices, wheat; paddy, etc. to the consumer goods industries. It supplies cereals, vegetables and other food .....

An industry may be defined as an institution that processes raw materials into final goods for .....

In right angled triangle XYZ, Let, 'x' and 'y' be perpendicular sides  According to question,                                       .....

Before unification, Kathmandu was divided into Kantipur (Kathmandu), Lalitpur (Patan) and Bhadgaon (Bhaktapur) ruled by three different Malla Kings. Due to their differences, there were frequent clashes and wars between them resulting in poverty .....

दिइएका बुँदालाई स्मरण गरी मिलाएर आफ्नै शैलीमा सिर्जनात्मक उत्तर लेख्नुहोस् है त .....

Accommodation is the key part in development of tourism in any country. Tourism is one of the most energetic and rapid growing sectors in Nepal. And, hotels play key elements role in its development as they provide basic facilities to people .....

Here, 8a3 + 36a2b + 54ab2 + 27b3. = 23.a3 + 3.22a2.3b + 3.2a.32.b2 + 33.b3. = (2a)3 + 3.22a2.3b + 3.2a.32.b2 + (3b)3. = (2a + 3b)3.        [ .....

Here, Area of room (A) = L x B                                 = 6m x 4m = 24m2. Rate of cost (C) = Rs.180/m2. Total .....

22. १. सकूह ‘क’ मा दिइएको शब्दका अर्थ समूह ‘ख’ बाट पहिचान गरी जोडा मिलाउनुहोस् ।

समूह ‘क’                 समूह ‘ख’
फुकुवा                      वातावरण
ब्यारेक                     संरक्षण
परिपालन                  भक्षक
पर्यावरण                   गहकिलोपन
                               छाउनी
                               बन्धन मुक्त

२. कोष्ठकबाट मिल्ने शब्द छानी खाली ठाउँमा भर्नुहोस् ।
क) ........ अनेकार्थी शब्द हो । (खाली, साली, जाली)
ख) ‘प्रत्यक्ष’ को पर्यायवाची शब्द .......... होइन । (अप्रत्यक्ष, सम्मुख, परोक्ष)
ग) ‘सूर्य’ काके पर्यायवाची शब्द .......... हो । (शशी, भानु, निशा)
घ) .......... श्रुतिसमभिन्नार्थी शब्द हुन् । (आलो–पालो, तिर–तीर, खोला–झोला)

३. अर्थ स्पष्ट हुने गरी वाक्यमा प्रयोग गर्नुहोस् ।
हातमुख जोड्नु, क्यारे

४. (क) तलका शब्द समूहबाट शुद्ध शब्द चिनेर लेख्नुहोस् ।
(अ) प्रशंशा, प्रसंशा, प्रशंसा, प्रसंसा
(आ) पञ्चक, पन्चक, पंचक, पंञ्चक

(ख) तलको वाक्यलाई शुद्ध पारी लेख्नुहोस् ।
हीजो यस वेला सम्म उ घरमा आएको थिएन !

५. रेखाङ्कित शब्दहरूको पदवर्ग छुट्याउनुहोस् ।
आफ्नो भाषाप्रति जति बढी मोह हुन्छ त्यति नै हामीलाई त्यस भाषामा लेखिने साहित्यमा अभिरुचि तीव्र हुन्छ

६. तलका उपसर्ग र प्रत्यय लगाई एक एक ओटा शब्द बनाउनुहोस् ।
उपसर्ग = परा, अति
प्रत्यय = तव्य, इक
 

६. परा + जय = पराजय (उपसर्ग) अति + अन्त = अत्यन्त (उपसर्ग) गम् + तव्य = गन्तव्य (प्रत्यय) समाज + इक = .....

Nepal was divided into 5 development regions in 2037 BS. The division was made for the decentralization of power, resource and means of production to the local levels. It was made so to obtain proportional development in the country. But, it .....

1) 2Mg+O2 → 2MgO 2) N2+3H2 → 2NH3 3) 3Mg+N2 →Mg3N2 4) 2KClO3 →2KCl+3O2 5) 2 Pb(NO3)2 = 2 PbO + 4 NO2 + O2 6) .....

Khalanga war memorial is a famous tourist spot in Dehradun which still depicts the brave story of Gorkhas. It is perhaps the world's first memorial erected by an army for their opponent. It was Britishers who constructed Khalanga War Memorial .....

Here given,  Area of pyramid (A) = 96 cm2  length of base (a) = 6cm slant height(l) = ? We know, Total Surface Area of pyramid (A)  = area of base + area of triangular faces 96 = a2 + 4 ⨉ 1/2 ⨉ a ⨉ slant .....

For every 165m rise in altitude, the temperature decreases by about 1 degree Celsius. High-altitude regions, such as mountainous places, experience low temperatures. Earth’s surface absorbs heat energy from the sun. When the surface warms .....

Here, Area of the floor of rectangular room = Area of carpet or, L x 3.6m = 20m ⨯ 0.9m       [ Area of carpet = length x breadth .....

Given, 7 ⨯ The perimeter of the rectangular garden = 420m or, P  = 420m/7 = 60m or, 2(l + b) = 60m     [ Since, Perimeter of the rectangular garden = 2(l + b).] or, 18m + .....

A : Hi! How are you? B : I’m well thank you. A : I’ve been calling you but the line just doesn’t connect when needed most. B : Anything urgent? A : Nothing really. But I need you to guide in preparing tea. B : Ok! I will .....

Here, LHS = 1/(secA + tanA) = (sec2A - tan2A)/(secA + tanA)               [ Sicne, sec2 .....

Here, f(x) = x/(2 - x) Taking     g(x) + f(1) = 5, or, g(x) + 1/(2-1) = 5 or, g(x) = 4. Again, taking  gof(4) = -8, or, g{4/(2-4)} = -8 or, g(-2)= -8 or, -2b - 1 = - 8 or, b = 7/2. Thus, g(x) = 7x/2 - 1 But g(x) = .....

Mithila painting on paper is quite important for sale. It has become the profession of Mithila women. Aside from generating important new family income, individual women have gained local, national, and even international recognition. Their .....

Here, ∡A + ∡B + ∡C = 180o or, 110o + 40o + ∡B = 180o or, ∡B = 30o. Now, .....

Dear student your student is not clear. Please send in the question .....

We know that peace is one of the prerequisites of development. Peace helps to speed up the development of a nation. Sustainable peace is the most fundamental thing needed for progress and prosperity of a country. It can be established in the .....

Let, 1st number = 3x 2nd number = 4x. By question, the sum of numbers is 70 So, 3x + 4x = 70 -----(i) or, 7x = 70 or, x = 10. So, the numbers are 3x = 3.10 = 30 and 4x = 4.10 = .....

We know that: Tan3A = (3tanA - tan3A)/(1 - 3tan2 .....

Here, Let l be the length of side of square lawn. Then, A = 289m2 or, l2 = 289m2 or, l = √(289m2) = 17m. Again, Distance between two opposite corner = d = l√2 = .....

Here, n(U) = 100% n(W) = 70% n(S) = 60% n(WUS) ' = 10% We know,  n(WUS) = n(U) - n(WUS)'  or, n(W) + n(S) - n(W∩S) = 100% - 10% or, 70% + 60% - n(W∩S) = 90% or, n(W∩S) = 40% Now,  People like both the .....

The main systems of the human body are: 1.Circulatory system 2. Digestive system and Excretory system 3.Endocrine system 4.Integumentary system / Exocrine system 5. Immune system and lymphatic system 6. Muscular system 7. Nervous .....

The effects of climate change are as follows: .....

Let MP  be x. From the first case, SP = MP - D% of MP       = x - 15/100 ⨯ x      = 85x/100 For profit = 20%, .....

Let f(x) = xn - an To check whether (x - a ) is a factor of xn - an or not,  f(a) = 0 Checking, f(a) = (a)n - (a)n = 0 Therefore, f(a) = 0. Since, f(a) = 0, (x - a) is a factor of xn - an for even .....

Commas are generally used to separate to or more different objects. If we want to combine the sentences into a singular sentence then we use the comma. Ex: He brought chocolate.       He brought ice-cream.       He .....

What can be said in New Year rhymes, That’s not been said a thousand times? The new years come, the old years go, We know we dream, we dream we know. We rise up laughing with the light, We lie down weeping with the night. We hug the world .....

Here, we have given,  a + b = 3 ⟹ b = 3 - a...............(i) and ab = 2 or, a(3 - a) = 2          [ from (i).] or, 3a - a2 = 2 or, a2 - 3a + 2 = 0 or, a2 - 2a - a + 2 = 0 or, a(a - 2) .....

Here,  tana/(seca -1 ) - sina/(1+cosa) = (sina/cosa)/{(1 - cosa)/cosa} - sina/(1 + cosa)    [ Since, tana = sina/cosa and seca = 1/cosa.] = sina/(1 - cosa) - sina/(1 + cosa) .....