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▶️বীজগাণিতিক সূত্রাবলী 1.📷 (a+b)²= a²+2ab+b² 2.📷 (a+b)²= (a-b)²+4ab 3.📷 (a-b)²= a²-2ab+b² 4.📷 (a-b)²= (a+b)²-4ab 5.📷 a² + b²= (a+b)²-2ab. 6.📷 a² + b²= (a-b)²+2ab. 7.📷 a²-b²= (a +b)(a -b) 8.📷 2(a²+b²)= (a+b)²+(a-b)² 9.📷 4ab = (a+b)²-(a-b)² 10.📷 ab = {(a+b)/2}²-{(a-b)/2}² 11.📷 (a+b+c)² = a²+b²+c²+2(ab+bc+ca) 12.📷 (a+b)³ = a³+3a²b+3ab²+b³ 13.📷 (a+b)³ = a³+b³+3ab(a+b) 14.📷 a-b)³= a³-3a²b+3ab²-b³ 15.📷 (a-b)³= a³-b³-3ab(a-b) 16.📷 a³+b³= (a+b) (a²-ab+b²) 17.📷 a³+b³= (a+b)³-3ab(a+b) 18.📷 a³-b³ = (a-b) (a²+ab+b²) 19.📷 a³-b³ = (a-b)³+3ab(a-b) 20. (a² + b² + c²) = (a + b + c)² – 2(ab + bc + ca) 21.📷 2 (ab + bc + ca) = (a + b + c)² – (a² + b² + c²) 22.📷 (a + b + c)³ = a³ + b³ + c³ + 3 (a + b) (b + c) (c + a) 23.📷 a³ + b³ + c³ – 3abc =(a+b+c)(a² + b²+ c²–ab–bc– ca) 24.📷 a3 + b3 + c3 – 3abc =½ (a+b+c) { (a–b)²+(b–c)²+(c–a)²} 25.📷(x + a) (x + b) = x² + (a + b) x + ab 26.📷 (x + a) (x – b) = x² + (a – b) x – ab 27.📷 (x – a) (x + b) = x² + (b – a) x – ab 28.📷 (x – a) (x – b) =...

Brain is found inside the skull of the pinnacle and is protected by a bony structure within the skull called cranium. It receives input from the sensory organs and sends output to the muscles. It is located inside the skull of the pinnacle and is protected by a bony structure within the skull called cranium. The three membranes called meninges surround the brain and protect it. The space between meninges is full of a body fluid which helps the brain from mechanical shocks. Cranial nerves arise from the brain. It is divided into three parts, forebrain, midbrain, and hindbrain. The forebrain consists mainly of the cerebrum, which is that the main thinking a part of the brain. Midbrain doesn’t have any longer division and hindbrain consists of pons, cerebellum, and medulla. The function of the hindbrain is to manage reflex movements of head, neck, and trunk in response to visual and auditory stimuli. It also controls the reflex movements of the attention muscles. this text deals with some...

   The banking sector has embraced the use of technology to serve its client’s faster and also to do more with less. Emerging technologies have changed the banking industry from paper and branch based banks to ”digitized and networked banking services. . And it is now changing the way how banks are delivering services to their customers.  Below I have listed some of the roles of technology in the banking industry. E-banking : This enables the bank to deliver its services easily to its high end customers. To make the system user friendly to all clients, banks have used a Graphical User Interface (GUI) , with this software , customers can access their bank details on their own computers, make money transfers from one account to another, print bank statements and inquire about their financial transactions. Another technology used by banks to exchange data between the bank and clients is called Electronic Date Interchange (EDI); this software can be used to transmit business ...

Some General knowledge about Bangladesh topic  #Bangladesh topics 01. What is the name of the website built on the centenary program of the father of the nation bangabandhu Sheikh Mujibur Rahman? Answer: Mujib 100. Gov. BD. 02. What is the total number of universities in the country? Answer: 46 (answer: 46) ## it has been decided to establish 5 more universities. 03. Where is the 'Sheikh Hasina University' located? Answer: Netrokona. 04. When did bangabandhu Sheikh Mujibur Rahman admitted in law department of Dhaka University? Answer: 1948 in 1948 05. What is the length of the speech of bangabandhu'S 7th March? Answer: 18 minutes 31 seconds (may be mentioned somewhere else). 06. When does 'Calcutta killing' (communal riot) take place? Answer: August 16, 1946. 07. How many countries take part in the 'Dhaka International Trade Fair 2020'? Answer: 21 (answer: 21) 08. What is the rate of inflation in Bangladesh? Answer: 6.5 percent. ## highest in South Asia. 09....

What would happen if UK leave EU? What are the impacts ? What UK dealing with? This is now hot topic around the world. Some of us think it would make benefit for some people in UK and some of us think it will cost a fortune if UK leave EU. Here are some impact has been pointed out below: First of all the trading will affected by Brexit . When the UK joined the European Economy Community in 1973 , just over  30% of UK exports went to the EU. By 2008 , over 50% of UK exports went to EU countries. Customers benefits from reduction in trade barriers that reduce the price of imported goods and prices. Businesses benefits from new export opportunities  that lead to higher sales and profits. Workers benefit from trade that allows the UK to specialise in industries where it has a competitive advantages. A positive scenario is , the UK continue to have an FTA with the EU.For example , Switzerland and Norway currently do through the European Free Trade Association , EFTA. On the...