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x2 + xyx3 – xy2 =x(x + y)x( x2 –y2 ) =(x + y)( x2 – y2 ) =(x + y)(x + y)(x – y) =1(x – .....

18x is in your .....

To test wether a given rod is a magnet or not Suspend the rod freely by tying with a thread. If the axis of the rod always stands along north-south direction then we can conclude that the rod is a .....

Here,   -18p8q4r2-24p4q8r4 = 3p8 - 44q8 - 4r4 - .....

Composition: There shall be a National Human Rights Commission of Nepal, consisting of a Chairperson and four other members. Appointment: The President shall, on the recommendation of the Constitutional Council, appoint the Chairperson and .....

Here, we have the equation, g = GMr2  ................(i) From the above equation,the value of 'g' is inversely propotional to the square of the distance of the place from the centre of the earth. The radius of the earth .....

Let the sides AB, BC, and CA of  △ ABC be represented by the equations x + y = 2, 3x - 4y = 6 and x - y = 0 respectively. Solving x + y = 2 and 3x - 4y = 6, we get B(2, 0) Solving 3x - 4y = 6 and x - y = 0, we get C(-6, -6). Solving .....

Here, First expression = x4 + 4x2 + 16                             = x

Here, First expression = 8a3 + b3                            =(2a)3 + b3                          = .....

Solution: Here,  Weight of son (m) = 20 kg Acceleration due to gravity (g) = 9.8 m/s2 ∴ Effort (E) = m ⨉ g                    = 20⨉ 9.8           .....

Here, we have given       tan2θ + cot2θ = 2 or, tan2θ + 1/tan2θ = 2        [ Since, cot = 1/tan.] or, tan4θ + 1 = 2tan2θ         [ Taking LCM and .....

Here, we have given       cot θ =  -√3 or,  cot θ =  cot(360o - 30o)  & cot(720o - 30o)      [ In fourth qd.cot is -ve and cosθ < .....

Let the number of two digits be  10x + y. From the first case,      10x + y = 4(x + y) + 3 or, 10x + y = 4x + 4y + 3 or, 10x - 4x = 4y - y + 3 or, 6x = 3y + 3 or, 3y = 6x - 3 or, y = 2x - 1......................(i) From .....

Let ages of father be x & son be y in 2070  B.S. Then, from the first case,  x = y + 28..........................(i) From the second case, Sum of ages at 2060 B.S. was 44. or, (x - 10) + (y - 10) = 44 or, y + 28 - 10 + y - 10 = .....

Let their present ages be 5x & 7x. Then, 8 years ago the ratio was 7:13. i.e, (5x - 8)/ (7x - 8) = 7/13 or, 13(5x - 8) = 7( 7x - 8) or, 65x - 104 = 49x - 56 or, 65x - 49x = - 56 + 104 or, 16x = 48 or, x = 48/16 = .....

Here,       2x/(x2 - 25) - 2x / (x - 5)  =  2x/(x2 - 52) - 2x / (x - 5)                 [ Since, 25 = 52.]  =  2x/(x + 5)(x - 5) - 2x / (x - .....

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We know that Nepal is an agricultural country. Around 75% of the total population is engaged in this sector. They cultivate different types of crops on the basis of the seasons. Paddy is usually grown in monsoon. Most the industries that are .....

Entrepreneurship may be defined as the capacity and willingness to develop, organize and manage a business venture along with any of its risks in order to make a profit. The most obvious example of entrepreneurship is the starting of new .....

The foreign employment may be defined as the condition in which; under the various circumstances; the youths from one nation migrate to the another for employment. They go to a foreign country when they don't have any job opportunities .....

A French philoshoper, Buffon put forth old planetesimal hypothesis in 1749 AD. This hypothesis states that "the sun and other star collides together, as a result a very large amount of matter was thrown out of the sun." These hot matters .....

Here, Weight of 40 bricks = F = 40 ⨯ 10N = 400N Distance = d = 70m Time = T = 50 s Now,  Power = Work done / time             = F . d / t        [Since, W = f.d.]     .....

The methods of environment conservation are listed below: 1. Forest Conservation  Forest plays the vital role for the environment conservation. The Ministry of Forest and Soil Conservation has launched various programmes for the .....

१. 'वान् ' आफैमा प्रत्यय हो ।  जस्तै : धन+वान् = धनवान्  २. तत्पुरुष समास  आश्चर्यले चकित = .....

Showing your love to the youngsters is the moral and the social responsibility of the seniors. It helps the youngster to grow into responsible people. We may show our love to the youngster in the following way: by helping them in their .....

Diarrhoea is caused by: 1. Unhygienic food preparation 2. Unsafe food storage 3. Inadequate hand washing 4. Antibiotics and other drugs 5. Malnutration 6. No access to clean .....

Here, First expression = a3 - a2 + a -1                            = a2(a - 1) + 1( a - 1)                     .....

Taxes are collected from citizens by the government to accomplish a series of objectives. Paying your taxes is considered a civic duty, although doing so is also a requirement of the law. If we do not pay your taxes, the government agency that .....

Since individuals constitute society, they form the units of society. As a member of society an individual must behave in a way which is good for all and which is helpful in promoting the welfare of society. Society calls upon the individuals to .....

Addition is finding the total, or sum, by combining two or more numbers. Example: 5 + 3 + 9 = 17 is an .....

Here,  The angle on the negative inclination with x-axis = 45°  So, the angle on the positive inclination with x-axis(A) = 180°  - 45°  = 135°  Now,  The slope of the line (m) = TanA = tan135° .....

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We have, 3:5=12:x or, 3 / 5 = 12 / x or, 3x = 12 ⨉ 5 or, x = 12 ⨉ 5 / 3 So, x = .....

Urbanization is a process whereby populations move from rural to urban area, enabling cities and towns to grow. It can also be termed as the progressive increase of the number of people living in towns and cities.  This normally contributes .....

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The climate of the given region is determined by a region’s climate system. A climate of the given region is dependent on the following components: the hydrosphere the cryosphere the land surface the .....

Look below and complete it. Last step is left to .....

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As we know, Weight = mg. Which shows that weight depends upon the value of g , acceleration due to gravity. We know that g differs from palce to place and celestial bodies of the universe. Thus,  weight of body .....

You know that force is equal to product of mass and acceleration of that mass. i.e.  F = m × a Weight is one of the type of force. Therefore,      Weight = mass × acceleration i.e. W = m × a But .....

When you strike a match on a matchbox, it creates friction. The friction causes heat, and the heat turns red phosphorus into whitephosphorus, which catches fire in the air. That means, chemical energy .....

The climate in all parts of Nepal is not similar because there are many factors which are responsible for the difference in climate. The factors that are responsible for the differences in climate are latitude, rainfall, slope of the land, distance .....

Here, the ages of two girls are in ratio 5 : 7. Let, the present ages of two girls be 5x and 7x years.  Now,  Eight years ago, the ages of two girls were,  (5x - 10) years and (7x - 10) years. Then, by the question,  (5x - .....

Here,  Length = L = 25cm = 25 / 100 m =0 .25m Effort = E = 20N We know ; Moment of force = E ⨯ L                             = 20N ⨯ 0.25 m       .....

The day between Sunday and Tuesday is .....

प्रकार, प्रमोद, प्रसाद, क्रम, भ्रम, फ्रक, ब्रेल, प्रवेश आदि .....

 १. टिलिक्कः हिमाल टिलिक्क टल्कियो ।  २. पिटिक्कः रुखमा चढ्दा हाँगो पिटिक्क भाँचियो ।  ३. .....

Tibet and British East India Company were expanding their territories. .....