Taking LHS cotA.cotB/[1 + cotA.cotB + cotA + cotB] ...................1 Now, cot(A + B) = cotA.cotB - 1/cotA + cotB A + B = 225 (Given) So, cot225 = cotA.cotB - 1/cotA + cotB 1 = cotA.cotB - 1/cotA + cotB (COT225=1) cotA + cotB = cotA.cotB .....

Mercury is nearest to the .....

Deuda somgs are popular in mid and the far western of Nepal. Deuda songs are very popular in Dailekh, Kalikot, Jumla, Achham, Bajang, Doti, Dadeldhura, Baitadi, Bajura and Darchula. Its subgenres include Thadi Bhakha, Rateri, Hudkeuli and .....

No, you see objects only when there is some light.  Light makes you able to see an object.  You see objects brighter when there is more light.  You see objects deemer when there is less .....

Now, as the ratio is known,  Use the same formula to calculate the value of 'y' Give it a .....

This problem is related to surds, so we must rationlize the denomerator. But in this question, if we take LCM it is rationalize itself. So take LCM. Use the identity,  1. (a + b)2 = a2 + 2ab + b2;  2. (a − b)2 = a2 − 2ab + .....

Use, of sinC+sinD in LHS, ie; Sin4A+sin2A=CosA or, 2Sin[(4A+2A)/2]Cos[(4A-2A)/2]=cosA or, 2sin3A.CosA-CosA=0 or,cosA(2sin3A-1)=0 Either, cosA=0..................solve & get A, Or, 2sin3A-1=0 Or,sin3A=1/2......................solve and get .....

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Given, n (U) = 100% n (R) = 55% n (T) = 45% n (R∩T) = 35% n (R∪T) = n(R) + n(T) - n (R∩T)                = 55% + 45% - 35% Now, those who do not like radio and tv is given by, n .....

This problem is related to surds, so we must rationlize the denomerator. But in this question, if we take LCM it is rationalize itself. So take LCM. Use the identity,  1. (a + b)2 = a2 + 2ab + b2;  2. (a − b)2 = a2 − 2ab + .....

It is necessary to keep our environment clean because we get fresh air, reduce pollution etc. An unclean environment leads to a bad condition of a society, arrival of diseases and many .....

Watch this video and try yourself.  It is very easy, isn't .....

Fibre is a long thread-like material.  The tissues of plants are fibres.  The muscles of our body contain fibres.  The silk is a fibre.  These all are natural fibres. There are some artificial fibres .....

It stays there because water-soluble gases dissolve more easily in cold than in hot water. Things that are gas at room temperature can easily escape the liquid, given enough energy. The lower the temperature, the less energetic the molecules .....

The Red Sea (also the Erythraean Sea) is a seawater inlet of the Indian Ocean. It lies between Africa and Asia. It is the connection to .....

A Samosa is also triangular. The roof of your school may also be triangular.  You may have triangular prisms and pyramids of paper in your class .....

Yes, you are absolutly .....

You know inertia is the internal property of a body that tends to keep the body in its original state of rest or uniform motion.  It depends upon the mass of the body.  More the mass, more will be the inertia.  Here, can you say .....

 मानवजीवनलाई गरिबी बाट धनि तिर लम्काएको छ  । अध्यारोबाट उज्यालोतिर डोर्याउने काम गरेको छ .....

The term "dendrite" comes from Greek’s word "dendron". Dendrites are the short branched extension of a nerve cell, along which impluses received from other cells at snapses are transmitted to the cell body. Dendrites .....

You are .....

सर्वप्रथम पक्षका बारेमा आउने  महत्वपूर्ण बुदाँहरु तयार पार्ने । बुँदालाई तार्किक र .....

यस आधारमा तपाई लेख्नुहोस् त .....

Blood does not clot inside the blood vessel because the chemical which causes the blood to clot in the cut area gets activated only, when it comes in contact with air(oxygen actually) to form the clotting .....

The central nervous system, which consists of the brain and spinal cord, contains two types of tissue. The white matter appears pinkish-white, while gray matter is a darker hue. Gray matter contains neural cells, dendrites, and .....

There are about 196 countries in the .....

Because that's how Work is defined.  One Joule is equivalent to one Newton of force causing a displacement of one meter. In other words, 1 Joule = 1 Newton * 1 meter I could also simply say, you need to expend energy to do work, but .....

The leaves absorb sunlight and carbon dioxide from the air. The roots absorb water and minerals from the soil. The water and minerals pass through the stem to the leaves.

Plants make food in their .....

Some example are, • the counting numbers {1, 2, 3, ...},  • zero {0},  • and the negative of the counting numbers {-1, -2, -3, ...} We can write them all down like this: {..., -3, -2, -1, 0, 1, 2, 3, ...} Examples of .....

Here's a pcture f periodic table. Can you tell me which period is longest? and how many elements are .....

Nepotism and favoritism are just like taking the bribe. We take the money while taking bribe but in nepotism and favoritism money is replaced by owns caste, relationship, .....

The words highlighted are nouns. Naming words. But we don't know more about them. So we need to add such words that can give some more information about these .....

Magnesium is an important mineral for our body.  It is a cofactor in more than 300 enzyme systems that regulate bio-chemical reactions in the body, including protein synthesis, muscle and nerve function, blood glucose control, and blood .....

                                Structure of Present perfect Continuous Tense     .....

Nervous system in our body is also a conductor of bio-electricity. Infromations in our body passes through the nervous system as electrical .....

Secularism is a state having no official or state religion. It means treating people of different religion equally. It gives concept that no religion is less or more important. Instead of big or small, all religion is equal. In secularism, .....

4x + (1/4-x ) = 256 / 16 This can be written as, 4x + 4x = 16 2 . 4x = 16 22x = 8 22x = 23 Now, you can easily get the .....

Hydrogen without any neutron is protium. Hydrogen with one neutron is deuterium. Hydrogen with two neutrons is tritium. Tritium is less  completely stable then other two. It is radioactive. The ratios of these three forms of .....

But until now, there are no such strong proofs for the existence of aliens. So, until Science proves it, we must simply say that there are no aliens at .....

Unitary method is a method in which you find the value of a unit and then the value of a required number of units. What can units and values are?

Suppose you go to the market to purchase 6 apples. The shopkeeper tells you that he is .....

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Common nouns are words used to name general items rather than the specific .....

To prove this take LHS . Multiply numerator and denomerator by 2 and  use formula of  2cosAcosB in numerator and formula of 2SinA sinB for denomerator. Take common and simplify.  I hope you will get answer after some .....

Crocodile is the animal which cries during and after eating. Actually, tears keep falling from its eyes all the .....

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According to the constitution 2072, there are two houses in the parliament. The lower house has 275 members in total. Out of 275 members, 165 is directly elected and 110 elected through the proportional system. The upper house, also called .....

Typically, magnification is related to scaling up visuals or images to be able to see more detail, increasing resolution, using microscope, printing techniques, or digital processing. In all cases, the .....

Have you ever heard a debate about the fast track construction. Some says it should be constructed by our nation itself whereas some others say it should be given to India. What happens if it is made by India? You know that if it is constructed by .....

Folks songs are the songs of our history. They are composed of their native language, folk musics and folk musical instruments. Folk songs represent the culture of contemporary society just as they represent the culture of past .....

When i was in my schooling our school celebrated the Democracy Day having different programs. We made speech on Democracy. We moved waving our national flag around the school zone and to the public places. But students there these days don't .....