Students and Teachers Forum

  2 cos 65° . sin 25° = sin(65∘ + 25∘) - sin(65∘ - 25∘) [ using: 2cosA. cosB = sin(A + B) - sin(A - B)] = sin90∘ - .....

.....

.....

‘मुग्लिङ’ चितवन जिल्लामा पर्दछ .....

Hence, it ultimately converts and amplifies vibration in the air to vibration in the fluid. The eardrums are extremely sensitive and rigid. The eardrum is also called the tympanic membrane or .....

- The problems like poverty, unemployment, corruption, crimes, disputes, etc. should be addressed. - The law and order should be maintained well in the country. - The equal justice should be provided to the people in the .....

So, eustachian tube is located between the middle ear and the nasopharynx. The nasopharynx consists of the upper throat and the back of the nasal .....

.....

Here, =  (x-y) (x-y) = x2 - xy - xy + y2 = x2 - 2xy + y2 Explanation: (x -y)2 means (x-y) (x-y) Multiplying every term inside the bracket, we get ( x2 - xy - xy + y2) Then add the same .....

.....

.....

Temporary hard water softens by boiling because hardness of the water is due to presence of carbonate and bicarbonate ions which decomposes on heating. These carbonate settle down as calcium carbonate or magnesium carbonate after boiling the .....

Solution: Taking LCM  we get, [ x2 - ( x + 2) (x - 2 )] / x ( x - 2) =  4 or, x2 - ( x2 - 22 ) = 4 x ( x - 2) or, x2 - x2 + 4 = 4x2 - 8x or, 4 =  .....

.....

The very first fluid the baby swallows after birth contains colostrum which is rich in nutrients and immune properties. Similarly, the very first fluid the baby swallows is the perfect maternal made substance suitable for preparing the newborn .....

.....

- The government should play the role of facilitator for the expansion of trade and commerce. - The professionalization and diversification of the agriculture should be done. - There should be proper management of the open border system. - Trade .....

.....

A human is a man, woman, or child of the species of Homo sapiens. Homo sapiens is the scientific name of human beings. They are self-aware social mammals. They are different from other animals. They are different by their superior mental .....

For example, some elements of fourth period such as Fe, Co, Ni, Cu, etc. found within Mendeleev's Group VIII are arranged in the periodic table in the order of increasing atomic weight and show similar properties among .....

Nepal's unification history proves that people had played a great role during the unification campaign. Without the contribution of the people, it was sure that the campaign would not be successful. The role of the people during the .....

.....

.....

When tossing a fair coin twice, Possible outcomes are. { HH, HT, TH, TT}= 4 Here, getting same results are {HH , TT} = 2 Hence probability = 2/4 = .....

.....

Two juices produced by mixeed gland are: 1.Pancreatic juice 2.Bile juice Explanation: The mixed gland means both exocrine and endocrine gland. It is a gland producing more than one kind of secretion. The juice produced from .....

‘शिवरात्रि’ पर्व यसकारण मनाइन्छः

महाशिवरात्रि अथवा शिवरात्री हिन्दुहरूको .....

You could put your hand through gases and you wouldn’t feel a thing. If they get out a container they spread very easily. Gases are all around us in the air that we .....

Solution: (-6x8y7-12x7y8) / (-2xy) Taking - 2xy common from numerator, we get = - 2xy(3x7y6 + 6x6y7) / (-2xy) Canceling - 2xy we get, = (3x7y6 + 6x6y7) Taking common  = 3x6y6 ( x + y ) Which is your .....

Your question is not clear, something is missing . Please resend correct .....

Light travels  faster in space or in air. When light travels in matter, it interacts with the atoms and molecules in the material and slows down. Light travels fastest in empty space, and travels slowest in solids. In empty space, light .....

Chandra Shumsher divided the Rana family into A, B and C classes. This initiated the fraction among the Ranas. Similarly, Juddha Shumsher exiled 'C' class Ranas from the role of succession and exiled them. As a result, the exiled .....

After the Kot massacre in 1903 BS, Nepal was ruled by hereditary Rana prime ministers. They came to power according to rules of succession and exercised absolute power. Kings were a puppet in their hands. There are various reasons behind the rise .....

Bhandarkhal Parva was one of the Parvas occurred during Rana regime. It was carried out at the Bhandarkhal garden on 1903 BS.  Bhandarkhal Parva was thought to be the outcome of the conspiracy of Queen Rajyalakshmi to kill Jung .....

While staying at Banaras, Rajendra Bikram Shah made a plan to come to power again against Jung Bahadur. But the people whom he deputed for killing Jung Bahadur were arrested with evidence. Consequently, Jung Bahadur dethroned Rajendra Bikram and .....

प्रश्न स्पष्ट भएन त साथी .....

Drug addiction is the extreme desire to use one or more chemical substance. It is the habitual taking of illegal drugs such as cocaine, heroin, hashish, etc. The most used illicit drugs abused by drug addicts are: - Cocaine    .....

Let, the height of the triangle be 'h'.          Hence, from the given condition, Base(b) = 3 x h = 3h.      ...................(i) Now, Given: Cost per 100 m2 (C)= Rs. 45 Total Cost(T) = Rs. .....

Communication is very important to us. It helps people to be in touch with the information about the things or events. Communication helps to strengthen the better relationships to one another. Communication helps to spread knowledge and .....

The followings are the tourism-related professions: - Travel Agent and Travel Agents research, - Tour plan and book trips  - Hotel Manager - Tour Operator - Event & Conference Organiser - Tour .....

A hollow cube does not have top and bottom .....