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Indices & Surds: Definition of Surds

Any root of a rational number, which cannot be further simplified to remove the root, it is called as Surd or Radical. “Surds are irrational numbers.” Any expression containing a radical, whether it is...

Indices & Surds: Definition of Indices

An index (plural: indices) is the power or exponent of a number. For Example: has an index of 5. Here, by the term we basically mean p x p x p x p x p i.e product...

Number System: Basic Arithmetic operations

In this post we will discuss about some Basic Arithmetic Operations: Addition, Subtraction, Multiplication and Division. Addition:Addition combines two quantities into a single quantity. It can be done with numbers, decimal or fractions. For...

How to Solve Simultaneous Equation with 3 Variables

Let’s take simultaneous equation with 3 variables. ……………(1) …………..(2) …………….(3) To solve simultaneous equation with 3 variables Step 1: Take 2 equations, say (1) & (2) to remove any one variable, say z. Mark...

CAT 2019 Application Process started

Many CAT 2019 aspirants were waiting eagerly for the start of CAT application process. Registration for the test started at 10 A.M. on 7th, August 2019. The Indian Institutes of Management will conduct a...