# Formula Sheets for General Aptitude (Part A): Surds & Indices , Download PDF!

By Astha Singh|Updated : February 22nd, 2023

General Aptitude Formula Sheets: During the preparation, the candidates study different formulas to solve problems, but at the last moment, these formulas might not be remembered by the candidates due to exam fear or pressure. We at BYJU'S Exam Prep do not want our students to lag anywhere during the preparation, so we have come up with a concept of a Formula Sheet that will help them revise the important formulas at the last moment. This formula sheet will be a short revision tool and contain only important formulas that need to be studied at the last minute to boost the score. Our experienced subject-matter experts have meticulously designed this CSIR NET General Aptitude Formula Sheet to provide you with the best authentic material.

In this article, we will cover the CSIR NET General Aptitude Most Important Formulas of Surds & Indices. Aspiring candidates can check all the most important formulas of the Surds & Indices for the last-minute revision. Scroll down the full article to find out!

## Formula Sheet On Surds & Indices

Indices: Let n be a positive integer and a be a real number, then:Indices: Let n be a positive integer and a be a real number, then: an = a × a × a × a × a × a × ……… n times where an is called “nth power of a” or “ a raised to the power in” where a is called the base and n is called index or exponent of the power an. Laws of Indices:

### Important Formula Based on Surds:

⦁ Comparison of Surds: If two surds are of the same order then the one whose radicand is larger is the larger surds. e.g.

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