Dharamvir Kumar jha

Hi friends. 1. (α+в)²= α²+2αв+в² 2. (α+в)²= (α-в)²+4αв 3. (α-в)²= α²-2αв+в² 4. (α-в)²= (α+в)²-4αв 5. α² + в²= (α+в)² - 2αв. 6. α² + в²= (α-в)² + 2αв. 7. α²-в² =(α + в)(α - в) 8. 2(α² + в²) = (α+ в)² + (α - в)² 9. 4αв = (α + в)² -(α-в)² 10. αв ={(α+в)/2}²-{(α-в)/2}² 11. (α + в + ¢)² = α² + в² + ¢² + 2(αв + в¢ + ¢α) 12. (α + в)³ = α³ + 3α²в + 3αв² + в³ 13. (α + в)³ = α³ + в³ + 3αв(α + в) 14. (α-в)³=α³-3α²в+3αв²-в³ 15. α³ + в³ = (α + в) (α² -αв + в²) 16. α³ + в³ = (α+ в)³ -3αв(α+ в) 17. α³ -в³ = (α -в) (α² + αв + в²) 18. α³ -в³ = (α-в)³ + 3αв(α-в) ѕιη0° =0 ѕιη30° = 1/2 ѕιη45° = 1/√2 ѕιη60° = √3/2 ѕιη90° = 1 ¢σѕ ιѕ σρρσѕιтє σƒ ѕιη тαη0° = 0 тαη30° = 1/√3 тαη45° = 1 тαη60° = √3 тαη90° = ∞ ¢σт ιѕ σρρσѕιтє σƒ тαη ѕє¢0° = 1 ѕє¢30° = 2/√3 ѕє¢45° = √2 ѕє¢60° = 2 ѕє¢90° = ∞ ¢σѕє¢ ιѕ σρρσѕιтє σƒ ѕє¢ 2ѕιηα¢σѕв=ѕιη(α+в)+ѕιη(α-в) 2¢σѕαѕιηв=ѕιη(α+в)-ѕιη(α-в) 2¢σѕα¢σѕв=¢σѕ(α+в)+¢σѕ(α-в) 2ѕιηαѕιηв=¢σѕ(α-в)-¢σѕ(α+в) ѕιη(α+в)=ѕιηα ¢σѕв+ ¢σѕα ѕιηв. » ¢σѕ(α+в)=¢σ...

Hi friends.   Hello friends in this post I write a letter to your father requesting him to send you some money.                                Hathwa Hostel                          Room no — 5                          Patna                  Date— 10-11-2019 Respected father            I have just received your letter I am glad to know that all the members of the family are well at home. The purpose of my this letter is to make you aware with the date of examination  which will commence from 15th December. Only a month of time has left in my hand. I don't have several important books,as for example , Mathematics, Physics,etc. I have to buy these books immediately. I am not i...

Hi friends. In this video i discuss on some apps for Diwali.

Post Hi friends.  Long and short Essay on Diwali for children and students Festivals reflect the cultural life of a nation. They are days of great rejoicings. Sometimes they have religious importance. Some are seasonal festivals. Diwali is the National festival of India. It is celebrated towards the end of October or in the beginning of November. It is held in the honour of Shri Ram Chandra's return to Ayodhya after an exile of fourteen years. It is an important seasonal festival for farmers. They are free from their labour of sowing rabi crops. They enjoy a well - earned holiday. The festival is also noted for repairs to the houses. A few days before the festival, people do necessary repairs to their houses. They clean them and have them whitewashed. They set them in order. Everything in the house is in apple- pieorder. The houses are decorated with pictures of National and religious leaders. Sweet- sellers,toy makers and manufacturers of fireworks make spec...

Post अमेरिकी ✅ अभिनेत्री, गायिका और मॉडल डायहान कैरोल का निधन 📕 अमेरिकी अभिनेत्री डायहान कैरोल का निधन हो गया है। उन्होंने गोल्डन ग्लोब और टोनी पुरस्कार जीते है और वह ऑस्कर के लिए नामांकित हुईं हैं। ब्रॉडवे म्यूज़िकल नो स्ट्रिंग्स में अपनी भूमिका के लिए सर्वश्रेष्ठ अभिनेत्री का टोनी पुरस्कार जीतने वाली वह पहली अश्वेत महिला भी थीं। Hi friends. ✅ अमेरिकी अभिनेत्री, गायिका और मॉडल डायहान कैरोल का निधन 📕 अमेरिकी अभिनेत्री डायहान कैरोल का निधन हो गया है। उन्होंने गोल्डन ग्लोब और टोनी पुरस्कार जीते है और वह ऑस्कर के लिए नामांकित हुईं हैं। ब्रॉडवे म्यूज़िकल नो स्ट्रिंग्स में अपनी भूमिका के लिए सर्वश्रेष्ठ अभिनेत्री का टोनी पुरस्कार जीतने वाली वह पहली अश्वेत महिला भी थीं।

🔰🔰03 अक्टूबर 2019 के मुख्य समाचार🔰 🔸जयपुर, जोधपुर और दुर्गापुरा देश के सबसे स्वच्छ रेलवे स्टेशन, रेल मंत्री ने की घोषणा 🔸मालदीव में बोले जनरल बिपिन रावत, आतंकवाद से निपटने के लिए भारतीय सेना पूरी तरह तैयार 🔸पाक को एक और झटका, भारत को मिलेगी हैदराबाद के निजाम की अरबों की संपत्ति 🔸नहीं चला इमरान का इस्लामिक कार्ड, आर्टिकल 370 को लेकर भारत को मिला सऊदी का साथ 🔸ISRO के वैज्ञानिक का घर में मिला शव, पुलिस को हत्या की आशंका 🔸चेन्नई दूरदर्शन के अधिकारी ने रोका था पीएम मोदी के भाषण का प्रसारण, सस्पेंड 🔸 *गांधी जयंती पर राजस्थान सरकार का बड़ा कदम, पान मसाला और सुपारी पर लगाया बैन* 🔸अमृतसर से खालिस्तान जिंदाबाद फोर्स का आतंकवादी गिरफ्तार 🔸दिल्ली से भी बड़ा अंटार्कटिका का हिमखंड टूटकर हुआ अलग, बन सकता है दुनिया के लिए खतरा 🔸PM मोदी के न्योते पर भारत आएंगे शी जिनपिंग, कश्‍मीर पर नहीं होगी कोई बात 🔸अमेरिका को डर, कश्मीर मुद्दे को लेकर भारत पर हमले कर सकते हैं PAK आतंकी 🔸मेक इन इंडिया ने भरी उड़ान, भारत में बनने लगे एफ-16 लड़ाकू विमान के पंख 🔸...

Hi friends. Hello friends in this particular post you know about how to change background of desktop . Step to Change Background of Desktop ★.  Go to Control Panel. ★.  Click on Personalization ★.  Select the them which you want to be set as background in computer.it contain more than one wallpaper. ★.  When you click on any them then immediately your background will be change. ★.  Selected specified wallpaper which you want to set by click Desktop Background. ★.  Then your one them in more wallpaper will be appear. ★.  Unchecked all wallpaper. ★.  Select one ★.  Click on save change ★.  Change more setting such as ( Picture Position, Change picture every)        I this hope you understand how to Change Background of Desktop.                       Thanks for reading this post.

Hi friends. Amazing facts.        ★हमारा दिमाग 12 से25 वाट जितनी बिजली उत्पन्न  कर सकता है। ★10 मिनट तक पसंदीदार गित सुनने या गुनगुनाने से इतनी ऊर्जा मिलती है,की उसके बाद का पूरा एक घंटा अपकी आंतरिक खुशी देगा। ★पिलो के बिना सोने स बैकपेन नहीं होगा, और रीढ़ की हड्डी स्ट्रेट बनी रहेगी। ★सूखी चाय पत्ती बदबूदार शूज़ म रखने से बदबू गायब हो जाएगी। ★पढ़ाई के दौरान चौकलेट खाना यादशक्ति के लिए अच्छा है         दोस्तो कैसा लगा ये amazing facts apko।

Hi friends.  हैलो दोस्तो, मैं आपको इस पोस्ट के माध्यम से बताना चाहता हु कि परीक्षा समिति अब फेसबुक, ट्विटर,इंस्टाग्राम,और you-tube के द्वारा भी छात्रों और अभिभावकों से जुड़ेगी।     बोर्ड का आधिकारिक अकाउंट इसपर खोला जाएगा। योजनाएं को जायदा से ज्यादा लोगो तक पहचाना मकसद।  गलत सुवना वायरल  होने पर तुरंत मिलेगी सूचना।    मैट्रिकऔर इंटर की परीक्षा के दौरान कई गलत सूचना वायरल होती है। परीक्षा के अलावा भी बोर्ड स जुड़ी कोई गलत जानकारी वायरल होती है तो ऐसे म उसे तत्काल रोकने म मदद मिलेगी।  छात्रअभिववक या अन्य लोग सोशल मीडिया के आधिकारिक अकाउंट के जरिए सही जानकारी हासिल कर सकेंगे।    CBSE  पहले स  कर रहा है इसका इस्तेमाल   Thanks।

Hi friends.        Hello friends Wellcome to my blog here you can all type of knowledge about,study,Study notes, computer education,and many more.                Thanks.

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tr" style="text-align: left;" trbidi="on"> Hi friends.     An Indian festival Dussehra.               Dussehra is a very important festival of India. It is celebrated either in September or in October.it is neither too hot nor too rainy. Rainy season is going to be farewelled. The days are very pleasant. Though we like fan but without fan also we don't feel any type of uncomport. Durring Dussehra we worship Goddess Durga for nine days.  Goddess Durga is known as the Goddess of power. This festival is also known as the “ Navratra”. On the tenth day some where Ravan is fired by Ram Which is called “ Ravan Dahan".                          This festival is associated with Ram Ravan battle. Ram killed Ravana on the day of Dussehra. This day is also known as Vijaya Dashami . Ram stands for goodness with Ravan for evil. On this day the goodne...

< हैलो दोस्तो मैं आपको ऐसा तीन नियम बताऊंगा अगर आप पालन करते है तो आपको जीवन में हमेशा सफलता पाएंगे। 1.     जीवन में जब दुख आता है तब हर इंसान के जीवन में निराशा भी आती है। फिर लगने लगता है कि आगे पीछे केबल दुख ही है। कुछ ठीक होगा ही नहीं। पर मै आपसे पूछता हु की क्या जीवन बकाई इतनी आसानी से पकड़ में आ सकती है? कहा जाता है कि जीवन किताब की तरह है। कुछ पन्ने दुख के होते है तो कुछ खुशी के। कुछ रोमांचित कर देते है।पर आगे क्या है,जब हम पन्ना  को पलते  है तब हमें पता चलता है।।   इसलिए मै आपसे कहना चाहता हूं की अगर जीवन म कभी दुख आये तो ये समझ लीजिए कि ये पेज दुख का है आऊर आगे वाले पेज प ध्यान दीजिए सुख के भी आ जाएंगे। 2.  एक बात हमेशा याद रखिए सब आपसे खुश रहे,आइसा  हो ही नही सकता। भले ही आपसे कोई मतलब ना हो,पर लोग अच्छी--- बुरी राय बनाते रहते है। ऐसे में लगातार दूसरों की नजर में चढ़ने के बजाय अपनी नजर में उठने की कोशिश करनी चाहिए। एक महान लेखक कहते है “ कुछ लोगो को ख़ुश करना मुश्किल होता है। ऐसे लोगो पर अपना समय और ऊर्जा खर्च...

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Hello friends                   Today I want to share some apps that apps help you in Study, Time Management.       This app's make your life more easier than others.      Let's start. 1.  Notes-—.     Friends this is a very good app ,in this app if you are a student then you have any notes then you write here.          This is a offline app no use of Internet connection. 2.    Ouora—   Friends this a very good app. If you Have any knowledge you can share it.    If you Have any questions you can ask It.      There are many expert of each topic  are here that helps you.   It's a Free app.   You have not to pay any charge. 3.  WiFi Study App —.  It is a very good app for which Students who are Preparing for any Competitive exams.  In this app there a...

Hi friends. Hello friends today I share  Essay on Holi.                        ★HOLI★ Holi is the most enjoyable festival of Hindu. It is celebrated on the last day of the month of phalgun.it is the festival of colours.on this day we all play with colours.so it is called Holi.         There is the main reason of this festival is. There was a devil King Hirankashyapu in satyug. He was known for his terrorism. He wanted to kill his son Prahlad who was a great devotee of lord Vishnu. He Declared himself the Lord. In the beginning he told Prahlad not to worship Lord Vishnu, Hirankashyapu tried to Kill Prahlad apply so many ways. But all the efforts to vain. His sister Holika was blessed with a sheet of clothes which was fire proof. Holika assured him that she would sit in fire with Prahlad might burn burnt to ashes. But it happend just reverse. Prahlad was saved but Holika burnt to ashes. This is the...

Hello Friends                  Today I share a list of books that's help you to crack India's Toughest Exam.                      Friends you know that i Share a list of Books of “Physics" that's help you to crack JEE Main, JEE Advanced,Neet,Board Exam.       NCERT.  —   Friends do you know mostly questions of every exam are directly from NCERT book so you have to Mostly read “NCERT Physics" . HC Verma physics—.  Friends HC Verma physics is also very important for Jee Main, JEE Advanced,Neet,   And Board Exam. NOTE—.  Friends you have to Solve all      questions of Physics From Question Bank.     For Board Exam You have to read Question Bank for Board Exam.    For JEE Main Jee Advance you have to Mostly solve Question Bank of JEE Main. For Neet You have to solve Question Bank of Neet.  ...

Hello Friends,                      How are you, Today i share a list of book, if you read this book, carefully you can clear your Doubt of your chemistry.               If you read this chemistry book then I sure you will get very good marks in Chemistry in your board exam and also on Jee Main and JEE Advanced and also in neet exam. NCERT-----.   Friends do you know NCERT-----is the best book for Jee Main and Jee Advance and and also for your Board Exam.                  For Chemistry you have to also solve forty year question bank of Jee Main and, for your Board exam you have read your question of your question bank because in every board exam there are many questions from previous year questions.     I hope if you read carefully this topic you can sure you get good marks in your Chemistry in your Board Exam and also Y...

Hi friends. In This Post we know in very simple ways budget 2019. Let's Start    If Your Earn 5 Lakhs You don't have to pay text. if you have less than two hectare property you will get 6000 Rupees every year.  For Every Person. * If Your earnings is 21 thousand you will get 7 thousand bonou. *  Person Who have PF Account if he die he will get 6 Lakh rupees. * You have to no tax on FD interest on 40 thousand. For Ladies * Anganwadi and Asha will increase 50 persent  salary. * In Ujjawal yogna Two crore free gas connection. Pension * Labour and other get 3000 thousand pension. * Riksa wala also get this offer. * If your earnings is less than 15 thousand you will get 1 thousand every month. * 500 crore for PM Mandhan Pension yogna. * From PM Mandhan yogna 10 crore Person will get this offer. For Farmer. * Two two thousand in three times per year for small Farmer who have less than two hectare propert...

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Hi friends. In This Post We Know That Why We celebrate Republic Day, What is the Importance of Republic Day,When We celebrate Republic Day,Essay on Republic Day and Many More. (1). Introduction              Republic Day is celebrated on 26th January every year.Of course our Country got independence on 15th aAugus 1947 but the real independence was granted on 26 January 1950.our own Constitution was implemented on this day. On 26 January 1950 India was Declared Sovereign Democratic Republic. Dr Rajendra Prasad became the first President of Our Country. (2) Prepration At our School          In our school also this day is celebrated with a great eclat.Our Principal hoists the flag and addresses the Students. This Year also Before a week Our music teacher,Dance Teacher called a meeting of the students and teachers. How the Republic Day should be celebrated was to be decided in that meeting.A few girls were also...

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