Students and Teachers Forum

.....

Bhuvan Pathak 22nd May 2018 Among a very few things, sculptures in Nepal have been contributing to a national economy. Since Nepal is a poor country, so it is very difficult to run daily administrative activities. And, when our arts and crafts add .....

Subtraction of 4x3 + 5x2 - 6x - 3 from 9x3 - 10x2 + 12x - 10 = 9x3 - 10x2 + 12x - 10 - (4x3 + 5x2 - 6x - 3) = 9x3 - 10x2 + 12x - 10 - 4x3 - 5x2 + 6x + 3 = 5x3 - 15x2 + 18x - .....

.....

.....

धनीराम साहुले धेरै र मीठा परिकारहरु खाएको देखेर पुन्टे आश्चर्य मान्दै थियो । झन् धनीराम .....

Here, 150 oranges were bought  out of which 18 kg were rotten. So, He sold 132 kg of oranges. Now, Selling price = Rate ⨉ Total kg sold = Rs. 80 ⨉ 132 = Rs. 10560 Here, Profit percent = 10% We have,  SP = CP + P% of .....

.....

.....

             Square Properties of a square: 1. Each of the interior angles of a square is 90 degree. 2. The diagonals of a square bisect each other. 3. The opposite sides of a square are parallel. 4. A .....

.....

Derived quantities are non-base quantities that come from combining one or more base quantity. You can find the area of a rectangle by multiplying one length by another length. But length is a base quantity. So multiplying length by length will .....

Given,       m = (3x-1)     and   n = (3x+1) Here,          x2 = mn +1 ∕ 9  Now,        R.H.S = mn +1 ∕ 9         .....

To prove,                   r2=pq+25 RHS= pq+25           = (r+5)(r-5)+25 [p=(r+5) and q=(r-5)]           = r2-25+25        .....

Here,  a + y = 180  [ Being linear pair] or, a + 125 = 180 So, a = 55 Now, a = ∠PCQ [ Being alternate angles] ∠PCQ  =∠RQC [ Being alternate angles] ∠RQC + x = 180 [ Being linear pair] or, 55 + x = 180 So, .....

.....

.....

नेपाली बृहत शब्दकोशका अनुसार   भाग्यः मान्छेले आफ्नो कर्मलाई पूर्वनियोजित  योजनाको फलका .....

First of all, I would like to thank a host for providing me an opportunity to speak a few words here today. Humans are considered as the most rational creature with a high self-esteem. They work around the .....

Let two consecutive odd number be x and (x+2). By question,                   x*(x+2)=143               or, x2+2x=143               .....

Camels adapt to their surrounding by the following ways:- i. They have long eyelashes to keep sand out of their eyes. ii. They have wide feet so that they can walk easily on the sand. iii. They have thick fur on their top of their body for .....

Let the numbers be x and ( 11  -  x. )  Since their product is 24           x  ( 11  -  x  )  =  24 or,       11x   -  x2    =  24 or, .....

We know, 1 gram =  1 / 1000 Kilogram  ​​​​​​       i.e    2156 gram  =  2156 / 1000 Kilogram                            .....

Generally , first letter of the name of elements is taken as symbols. For example, symbol of  Hydrogen is 'H' and symbol of oxygen is 'O' If name of two   elements starts with same alphabet,  second or third alphabet .....

Examples of compounds are Water ( H2O) Carbon Dioxide (CO2) Calcium Carbonate ( CaCO3) Common Salt .....

Here,  t4 = 11 d = ? a = 5 Using formula for the nth term, tn = a + ( n - 1 ) d When n = 4 t4 = a + ( 4 - 1 ) d or, 11 = 5 + 3 x d  or, 6 = 3d ∴ d = 3 = common .....

Here,  t5 = 18 d = 4  a = ? Using formula for the nth term, tn = a + ( n - 1 ) d When n = 5 t5 = a + ( 5 - 1 ) d or, 18 = a + 4 x 4  ∴ a = 2 = first term For tenth term n = 10 t10 = a + ( 10 - 1 .....

पक्वान्नः छठ पर्वमा अनेक किसिमका मीठा मीठा पक्वान्न पकाई चढाएर खाइन्छ । आराधनाः म भगवान्को .....

Sources of energy , which we can use instead of fossil fuels are called alternative sources of energy. For example: Solar energy, wind energy, geothermal energy etc Generally, alternative sources of energy are renewable sources of .....

Given, Angle of refraction = 20o  Refractive index = 1.33 Angle of incidence = ? Now according to SNELL's law,  μ = sini / sinr or, 1.33 = sinio / sin20 or, sinio = 1.33 x sin20o or, sinio = 0.45488 or, i = sin-1( .....

Here, critical angle = 420.    Refractive index = 1/(sinc)   where,  c = critical angle                             = 1/ sin 420       .....

The basic requirements to improve the health condition of village are as follows: - Providing pure drinking water to all the villagers - Provision of hospital equipped with advanced technologies - Offering education to the people regarding the .....

We have the equations as, Weight = mass ⨉ gravity -----------------(i) The weight of a body is directly proportional to gravity.   g = GM/(R+h)2  ------------------------------(ii)  Here, gravity is .....

2 times 2 is 4,  2 × 2 = .....

Pressure is force applied per unit area. Mathematically,  Presure =  ForceArea  Here,  Pessure = 200pascal Area = 0.2m2 Now Force = pressure ⨉ area           = 200⨉0.2       .....

We have given,   2a = 5b = (100)c , or, 2a = 5b = (22⨉52)c Taking,  2a = 5b ⟹ 2 = 5b/a ............i) Again, taking,       5b = (22⨉52)c or, 5b = .....

We have given, a√x = b√y = c√z  Taking,       a√x = b√y ⟹ y = xb/a ..................i) Taking,      a√x = c√z  ⟹ z = .....

Let 2x = 3y = 12z = k. So, 2 = k(1/x) 3 = k(1/y) And, 12 = k(1/z) You may know that, 12 = 22 ⨉ 3 So,  k(1/z) = k(1/x)⨉2 ⨉ k(1/y) or,  k(1/z) = k(1/x)⨉2 ⨉ k(1/y) or, k(1/z) = .....