Sec A = 15/7 Cos A = 1/SecA Therefore CosA = 1/ 15/7 = 7/15 
A + B = 90 or A = 90 - B 

CosA = Cos(90-B) 
7/15 = SinB 
CosecB = 1/SinB = 1/ 7/15 = 15/7 

An acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance. A base is a molecule or ion able to accept a hydrogen ion from an acid.

Acidic substances are usually identified by their sour taste. An acid is basically a molecule which can donate an H+ ion and can remain energetically favourable after a loss of H+. Acids are known to turn blue litmus red.

Properties of Acids

• Acids are corrosive in nature.
• They are good conductors of electricity.
• Their pH values are always less than 7.
• When reacted with metals, these substances produce hydrogen gas.
• Acids are sour-tasting substances.
• Examples: Sulfuric acid [H₂SO₄], Hydrochloric acid [HCl], Acetic acid [CH₃COOH].

the process is galvanisation where iron is protected from getting rust

here A peice of iron is coated with liquid zinc

to get prevention from rusting

here X is liquid zinc and process is known as Galvanisation

Trade was the main channel connecting the countries in the past. Silk route connected different countries of the world; as a result extensive trade took place through this route. Now besides trade, capital, technology, people and services are taking place all over the world.

Accommodation in Belgium

In Belgium, the government handled the community difference very well. Between 1970 and 1993, Belgian leaders amended their constitution four times and came up with a new model to run the government.

Here are some of the elements of the Belgian model.

1. The Constitution prescribes that the number of Dutch and French-speaking ministers shall be equal in the Central Government. Some special laws require the support of the majority of members from each linguistic group. Thus, no single community can make decisions unilaterally.
2. The state governments are not subordinate to the Central Government.
3. Brussels has a separate government in which both communities have equal representation.
4. Apart from the Central and the State Government, there is a third kind of government. This ‘community government’ is elected by people belonging to one language community – Dutch, French and German-speaking – no matter where they live. This government has the power regarding cultural, educational and language-related issues.

Majoritarianism in Sri Lanka

Sri Lanka emerged as an independent country in 1948. The Sinhala community was in the majority so they had formed the government. They also followed preferential policies that favoured Sinhala applicants for university positions and government jobs. These measures taken by the government gradually increased the feeling of alienation among the Sri Lankan Tamils. Sri Lankan Tamils felt that constitution and government policies denied them equal political rights, discriminated against them in getting jobs and other opportunities and ignored their interests. Due to this, the relationship between the Sinhala and Tamil communities become poor. Sri Lankan Tamils launched parties and struggles for the recognition of Tamil as an official language, for regional autonomy and equality of opportunity in securing education and jobs. But their demand was repeatedly denied by the government. The distrust between the two communities turned into widespread conflict and turned into a CIVIL WAR. As a result, thousands of people of both the communities have been killed. Many families were forced to leave the country as refugees and many more lost their livelihoods. The civil war ended in 2009 and caused a terrible setback to the social, cultural and economic life of the country

Manufacturing is the production of goods in large quantities after processing the raw materials into more valuable products.

Manufacturing industries provide irrigation pumps, fertilizers, insecticides, pesticides, machines and tools, etc. to the farmers.

Export of manufactured goods expands trade and commerce, and brings much needed foreign exchange.

Which of the following is a feature of dictatorship?

(a)No religious faith

(b) Faith showing supremacy and war

(c) Rule of one individual or party

(d) All of these

Ans d.

The lawyers was not happy with the job because he was made to deliver summns, instead of prepaing legal briefs.For that task, he had to go to dirty and shadowy corners of the city. He also fearwed of being beaten up bythe witnesses.

We have given a₃ = 16

a + (3 − 1) d = 16

a + 2d = 16 (1)

a₇ − a₅ = 12

[a+ (7 − 1) d] − [a + (5 − 1) d]= 12

(a + 6d) − (a + 4d) = 12

2d = 12

d = 6

From equation (1), we obtain

a + 2 (6) = 16

a + 12 = 16

a = 4

Therefore, A.P. will be

4, 10, 16, 22, …

जैसे हम अपना परिचय देते हैं, ठीक उसी प्रकार एक वाक्य में जितने शब्द होते हैं, उनका भी परिचय हुआ करता है। वाक्य में प्रयुक्त प्रत्येक सार्थक शब्द को पद कहते है तथा उन शब्दों के व्याकरणिक परिचय को पद-परिचय, पद-व्याख्या या पदान्वय कहते है।
व्याकरणिक परिचय से तात्पर्य है - वाक्य में उस पद की स्थिति बताना, उसका लिंग, वचन, कारक तथा अन्य पदों के साथ संबंध बताना।

जैसे -
राजेश ने रमेश को पुस्तक दी।
राजेश = संज्ञा, व्यक्तिवाचक, पुल्लिंग, एकवचन, ‘ने’के साथ कर्ता कारक, द्विकर्मक क्रिया ‘दी’के साथ।
रमेश = संज्ञा, व्यक्तिवाचक, पुल्लिंग, एकवचन, कर्म कारक।
पुस्तक = संज्ञा, जातिवाचक, स्त्रीलिंग, एकवचन, कर्मकारक।

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil.

An Operating system (OS) is a software which acts as an interface between the end user and computer hardware. Every computer must have at least one OS to run other programs. 

Types of operating systems

• Single-tasking.
• Multi-tasking.
• Single-User.
• Multi-User.
• Distributed.
• Templated.
• Embedded.
• Real-time.

A food chain refers to the order of events in an ecosystem, where one living organism eats another organism, and later that organism is consumed by another larger organism. The flow of nutrients and energy from one organism to another at different trophic levels forms a food chain.

The food chain also explains the feeding pattern or relationship between living organisms. Trophic level refers to the sequential stages in a food chain, starting with producers at the bottom, followed by primary, secondary and tertiary consumers. Every level in a food chain is known as a trophic level.

After fertilisation has taken place in flower, a zygote is formed which divides several times to form an embryo within the ovule. The ovule develops a tough protective coat around itself and is gradually converted into a seed. The ovary grows rapidly and ripens to form a fruit. Meanwhile, the petals, sepals, stamens, style and stigma gets shriveled and fall off.

The committee is determined not to leave _____ they have finished the project

Until

The committee is determined not to leave until they have finished the project

Until is a preposition and a conjunction. Until is often shortened to till or ’til. Till and ’til are more informal and we don’t usually use them in formal writing.
 

Public sector:

1.It is controlled and managed by the government.
2.The main aim of the sector is public welfare.
3.The sector provides basic facilities like education, health, food and security to the people. For Example: Railways, Post office, BSNL.

Private sector:

1.It is controlled and managed by an individual or a group.
2.The main aim of the sector is to earn profits.
3.Private sector does not provide any service at a reasonable rate. For example: Tatas, Birlas, Reliance.

Public sector:

• It is controlled and managed by the government.
• The main aim of the sector is public welfare.
• The sector provides basic facilities like education, health, food and security to the people. For Example: Railways, Post office, BSNL.

Private sector:

• It is controlled and managed by an individual or a group.
• The main aim of the sector is to earn profits.
• Private sector does not provide any service at a reasonable rate. For example: Tatas, Birlas, Reliance.

Public sector:

1.It is controlled and managed by the government.
2.The main aim of the sector is public welfare.
3.The sector provides basic facilities like education, health, food and security to the people. For Example: Railways, Post office, BSNL.

Private sector:

1.It is controlled and managed by an individual or a group.
2.The main aim of the sector is to earn profits.
3.Private sector does not provide any service at a reasonable rate. For example: Tatas, Birlas, Reliance.

Public sector:

• It is controlled and managed by the government.
• The main aim of the sector is public welfare.
• The sector provides basic facilities like education, health, food and security to the people. For Example: Railways, Post office, BSNL.

Private sector:

• It is controlled and managed by an individual or a group.
• The main aim of the sector is to earn profits.
• Private sector does not provide any service at a reasonable rate. For example: Tatas, Birlas, Reliance.

The most common life goal of everyone is to become successful in our way.

The most common life goal of everyone is to become successful in our way.

The difference between sticky keys and toggle keys is following:

Sticky keys are keys such as alt, ctrl, shift which are pressed once and the function is activated or deactivated only until they are pressed .

Toggle keys are for people who are visually challenged and they can feel them to work.

Toggle keys like num lock, caps lock are keys which are only pressed once to activate the function unlike sticky keys and only pressed again if the same function is to be deactivated.