Students and Teachers Forum

Let the vertices of right angled triangle be A(1,1) , B(1,7) & C(7, 1). Now,  find the mid-point of hypotenuse  BC by using mid-point formula and give it name D. Find the BD, AD & CD by using distance formula. You will get they .....

Another way to prove collinear. Find the slope of AB and BC (using the two points).  If Slope of AB = Slope of BC, then A, B, C are collinear. There is also a formula: x₁(y₂ - y₃) + x₂(y₃-y₁) + x₃(y₁ - y₂). Put the values .....

a) Cell wall is made up of cellulose. b) Cell wall are present only in plant cells. c) Centrioles  are present only in animal cell. d) Vacuole in plant cells are large. e) Nucleus is the controlling centre of cell. f) Centrosome .....

साथी, उत्तर लेखेर देखाउनुहोस् न ल .....

The sensory function of the nervous system involves collecting information from sensory receptors that monitor the body's internal and external conditions. These signals are then passed on to the central nervous .....

Here,  24ab(9a2 - 16b2) /8ab (3a + 4b)  = 3(9a2 - 16b2) / (3a + 4b)                                [Since, 24ab/8ab = 3] = 3{(3a)2 - .....

Here,  Given: ABCD is a parallelogram. To prove:  △ECM = △EAD.      Proof: 1. △BCD = △BCM                .....

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Here,  Let one number be a  Then another number is 1/a  Now, Arithmetic mean = (a+ 1/a)/2                                    .....

Here,  Mixture: a substance made by mixing other substances together. Compound: a compound is a substance that results from a combination of two or more different chemical elements, in such a way that the atoms of the different .....

We can determine the tap water for other components like sodium, magnesium, calcium, iron, copper, lead and non-metal elements like fluoride, chloride, nitrate and sulphate by give a test for each element. For  example: Test for chlorine .....

Conditional Sentences are also known as Conditional Clauses or If Clauses. They are used to express that the action in the main clause (without if) can only take place if a certain condition (in the clause with if) is fulfilled. There are three .....

UNSECO also helps Nepal in the development of the education sector as well. It also helps Nepal by providing the financial as well as technical assistance while renovating the cultural and religious sites. UNESCO also helps in the .....

The socio-economic beliefs of the Nepali society still consider the women as the subordinate to men. A women’s life is strongly influenced by her father, husband and son. Such patriarchal practices are further reinforced by the legal .....

The  protection of computer hardware from being damaged or lost due to accidental or intentional harm is called hardware security.  The computer hardware can be secured by applying following security  measures: Regular .....

QBASIC is a high level programming language that allows us to write programs. It uses English like words and mathematical symbols to write programs. QBASIC provides working area to write programs and QBASIC has its own Interpreter. QBASIC .....

Here, x+4x-4+ x-4x+4=103 Then, taking LCM, we get or, {(x + 4)2 + (x - 4)2}/ (x2 - 16) = 10/3  or, (x2 + 8x + 16 + x2 - 8x + 16 )/ (x2 - 16) = 10/3 or, (2x2 + .....

Here,  3x-1+ 2x-3=2x Taking LCM, we get or, (3x - 9 + 2x - 2)/{(x- 1) (x - 3)} = 2/x or, (5x - 11)/ /{(x- 1) (x - 3)} = 2/x or, x(5x - 11) = 2(x - 1) (x - 3)  or, 3x2 - 3x .....

Here,  3x+4x+1=2 Taking LCM, we get    (3x + 3 + 4x)/{x(x+1)} = 2  or, 7x + 3 = 2x2 + 2x or, 2x2 - 5x - 3 = 0 or, 2x2 - 6x + x - 3 = 0  or, 2x( x - 3) + (x .....

Here,  1-4x2x+1= 41-5x Cross-multiplying we get or, (1- 4x) (1 - 5x) = 4(2x + 1)  or, 1 - 5x - 4x + 20x2 = 8x + 4 or, 20x2 - 17x -3 = 0 or, 20x2 - 20x + 3x - 3 = 0 or, .....

The collective noun is the word used to represent a group of people, animals, or things. Some examples of collective .....

A group of army is called the .....

A homogeneous mixture is a mixture of two substances that is completely even throughout the solution and there are no borders inbetween substances. It looks like one new substance. Heterogeneous on the other hand, is a solution that is not .....

Air is a mixture because it consists of several gases that are able to be separated by physical means (different temperatures of liquifaction permitting fractional distillation). That is the definition of a mixture - the ability to be separated by .....

Both the sectors are so attached to each other that it is not possible to increase the growth of one sector without the improvement of the other sector. If agriculture is considered as the ‘heart’ of the country, then obviously industry .....

The was established with the view to; - promote peace, its values and the well-being of its citizens. - offer freedom, security and justice without internal borders. - combat social exclusion and discrimination. - promote scientific and .....

National heritages can be defined as valuable assets of a country. National heritage is quite important. Firstly, they help us promote our national identity. They are the source of our pride and glory. They help to promote tourism in the .....

National heritages can be defined as valuable assets of a country. National heritage is quite important. Firstly, they help us promote our national identity. They are the source of our pride and glory. They help to promote tourism in the .....

National heritages can be defined as valuable assets of a country. They are valuable and outstanding religious, cultural or natural assets of the country. National heritage is quite important. Firstly, they help us promote our national .....

भाई मिडासले हरेक विध्यार्थीको सिर्जनशीलतालाई प्राथमिकता दिएर हरेक समस्यामा विध्यार्थीलाई .....

We kmow, W = mg,  where, W is weight of body, m is mass and g is acceleration due to gravity, But g = MG / R2. From this relation, weight is inversly propertional to square of radius of earth. At the equator there is slightly less due to .....

Here, Tanθ = x / y = p/b Now,  h = √[p2 + b2] = √[x2 + y2] Now,  ( x sinθ - y cosθ) / ( x sinθ + y cosθ) = {x.x/ √(x2 + .....

साँघुरोः बाटो साँघुरो भएकाले दुइटा गाडी दुर्घटना हुँदा धेरै मान्छेहरु मरे .....

शिष्टः हामी अरुसँग बोल्दा शिष्ट भाषाको प्रयोग गर्नुपर्छ .....

गर्ल्यामगुर्लुमः भूकम्पमा धेरै घरहरु गर्ल्यामगुर्लुम ढले .....

जुन आगोले पोल्यो त्यसैमा सेक्नुपर्छ भनेझैँ धेरै गर्मी भएको बेला तातो चिया पिएर एकछिन भए पनि .....

Here, To prove ∆ABC is an isosceles triangle, we need to show two angles or two sides are equal. For this, 1. ∡BDA = ∡ADE             [ AD is bisector .....

Weak= strong empty=full eventually=ultimately, .....

Density is the only thing affecting whether something floats or sinks. If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, .....

If the earth didnt revolve around the sun, there will be no centripetal force to stop the earth being attracted toward the sun due to strong gravitational force. Can you guess, what will happen when the earth gets near the sun. The temperture of .....

Work is done whenever a force moves something over a distance. You can calculate the energy transferred, or work done, by multiplying the force by the distance moved in the direction of the force. Energy transferred = work .....

The refracted sound field of a finite beam extremely depends on the size and on the frequency of the generating element. Snell’s law in many cases is not applicable to calculate the refraction angle of a finite beam. Approaches using plane .....

The first page of the website is called homepage.   It is also sometimes called as start page or main page of the .....

The term socialization refers to the process by which an individual learns the social norms and values. We learn life skills through socialization. You know socialization is such a process which transforms a biological creature into a social .....

No particle exists without energy. Its wrong that stone on the ground has no energy. As energy can neither be created nor be destroyed. Then how can one say that a particle has no energy on the ground. Actually the bookish stuff that you have .....

Here, circle touches both the axis . So, r = h = k. So, equation of circle is (x - h)2 + (y - h)2 = h2   ....................(i)  [ Since, equation of circle is  .....

A bud is an undeveloped or embryonic shoot and normally occurs in the axil of a leaf or at the tip of a stem. Once formed, a bud may remain for some time in a dormant condition, or it .....

Here, We know, TSA = LSA + 2 area of base or, 360 = Perimeter of the base ⨯ Height + 2 ⨯Area of base or, Area of base = 25⨯ Height + 60  or, Height = 300/25cm Find it. Finally,  LSA = Perimeter of the base ⨯ .....