Noor E Alam (Babu), University of Dhaka, Lecturer in English Medium & Version। Cell: 01750044274

 গণিতের ২০০⁺ সূত্র ও শর্টকাট টেকনিক ➺ ইউনিকোড ম্যাথ ক্যারেক্টারে করা তাই সবখানে সাপোর্ট করবে  ❏ (𝑎＋𝑏)² ＝ 𝑎²＋𝑏²＋2𝑎𝑏 | ＝ (𝑎 – 𝑏)²＋4𝑎𝑏 ❏ 𝑎² ＋ 𝑏² ＝ (𝑎＋𝑏)² – 2𝑎𝑏 | ＝ (𝑎 – 𝑏)²＋2𝑎𝑏. ❏ 𝑥 + ⅟𝑥 = 𝑛 ➺ 𝑥² ＋ ⅟𝑥² ＝ 𝑛² – 2 | 𝑥³ ＋ ⅟𝑥³ ＝ 𝑛³ – 3𝑛 ❏ 𝑥 – ⅟𝑥 = 𝑛 ➺ 𝑥² ＋ ⅟𝑥² ＝ 𝑛²＋2 | 𝑥³ ＋ ⅟𝑥³ ＝ 𝑛³＋ 3𝑛 ❏ (𝑎 – 𝑏)² ＝ 𝑎² – 2𝑎𝑏＋𝑏² | ＝ (𝑎＋𝑏)² – 4𝑎𝑏 ❏ 𝑎² – 𝑏² ＝ (𝑎 ＋𝑏)(𝑎  – 𝑏) ❏ 2(𝑎²＋𝑏²) ＝ (𝑎＋𝑏)²＋(𝑎 – 𝑏)² ❏ 4𝑎𝑏 ＝ (𝑎＋𝑏)² – (𝑎 – 𝑏)² ❏ 𝑎𝑏 ＝ {(𝑎＋𝑏)/2}² – {(𝑎 – 𝑏)/2}² 📚 ২ লক্ষাধিক প্রশ্নের স্বয়ংসম্পূর্ণ জব সলিউশন ফ্রি অ্যাপ.!🔎সার্চ UJS ➺ app.ebook.com.bd ❏ (𝑎＋𝑏＋𝑐)² ＝ 𝑎²＋𝑏²＋𝑐²＋2(𝑎𝑏＋𝑏𝑐＋𝑐𝑎) ❏ (𝑎＋𝑏)³ ＝ 𝑎³＋3𝑎²𝑏＋3𝑎𝑏²＋𝑏³ ❏ (𝑎＋𝑏)³ ＝ 𝑎³＋𝑏³＋3𝑎𝑏(𝑎＋𝑏) ❏ 𝑎 – 𝑏)³ ＝ 𝑎³ – 3𝑎²𝑏＋3𝑎𝑏² – 𝑏³ ❏ (𝑎 – 𝑏)³ ＝ 𝑎³ – 𝑏³ – 3𝑎𝑏(𝑎 – 𝑏) ❏ 𝑎³＋𝑏³ ＝ (𝑎＋𝑏) (𝑎² – 𝑎𝑏＋𝑏²) ❏ 𝑎³＋𝑏³ ＝ (𝑎＋𝑏)³ – 3𝑎𝑏(𝑎＋𝑏) ❏ 𝑎³ – 𝑏³ ＝ (𝑎 – 𝑏) (𝑎²＋𝑎𝑏＋𝑏²) ❏ 𝑎³ – 𝑏³ ＝ (𝑎 – 𝑏)³＋3𝑎𝑏(𝑎 – 𝑏) 📚 ২ লক্ষাধিক প্রশ্নের ফ্রি অ্যাপ.!?...

 A mobile phone makes our lives easier. It can be used for work, business purposes, attending online classes, entertainment, or just talking with friends and family members. Modern smartphones have many useful features. They also have a high-speed internet connection that helps us get what we need quickly and easily. Mobile phones can be used as an alternative to laptops and desktops because they are much more compact and lightweight than their counterparts and are portable. Mobile phones have made communication more accessible than ever before. Mobile phones have encouraged a whole new way of doing things, including taking photos, videos, attending online classes, etc. The latest news and all kinds of information that help in knowledge building are available at students’ fingertips. Mobile phones these days have the capability to do nearly everything computers can do. Students use mobile phones to write assignments and create presentations. Most mobile phones have advanced video a...