Surds are square roots which can’t be reduced to rational numbers. Some can be simplified using various rules or by rationalising the denominator. Simplifying expressions using the laws of indices ...

Watch this video to learn about the rules of surds. For example, \(\sqrt 4 = 2\) is not a surd. However \(\sqrt 5\) is a surd. If you use a calculator, you will see that \(\sqrt 5 = 2.236067977...\) ...

Check the DDA Naib Tehsildar Syllabus 2026 along with the latest exam pattern, subject-wise topics, marking scheme, and ...

Know the latest DDA Junior Secretariat Assistant Syllabus for English, Reasoning, Quantitative Aptitude, GK and Computer here ...

People with inattentive ADHD have trouble staying organized and focused. Symptoms must last at least six months to be considered ADHD. A healthcare provider can diagnose ADHD after reviewing symptoms ...