Final answer key and result preparationAfter the objection window closes, the National Testing Agency publishes the final answer key incorporating all accepted corrections. The CSIR UGC NET December ...

EMRS Answer Key 2025: The National Education Society for Tribal Students (NESTS) has successfully conducted the EMRS PGT TGT Exam 2025 on December 14, 2025. Candidates who appeared in the OMR-based ...

MAHA TET 2025 Answer Key: The MSCE has conducted the MAHA TET on 23rd November in two shifts for Paper 1 and Paper 2. The answer key is expected to be released soon by the MSCE on its website. The ...

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 \(\sqrt 5 = 2.236067977...\) ...

Rationalising an expression means getting rid of any surds from the bottom (denominator) of fractions. Usually when you are asked to simplify an expression it means you should also rationalise it.

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