Algebra and General Mathematics: Surds

Review notes in Surds topic in Algebra and General Mathematics. This will help you prepare in taking the Engineering Board Exam or simply reviewing for your Algebra subject.

Algebra and General Mathematics: Surds

SURDS

Surds is a numerical expression containing an irrational number.

Pure Surds – one which has one factor as a unit and the other factor as an irrational number.

Example:

{ √3, 3√7, … }

Mixed Surds – one which comprises of rational and irrational numbers.

Example:

{ 4 + √5, 3 + 3√6, 2 - √3, … }

TYPES OF SURDS

A surd maybe quadratic, cubic, quartic and so on … depending upon the powers involved.

1. Quadratic surd          :      √5 or 51/2
2. Cubic surd          :      3√5 or 51/3
3. Quartic surd          :      4√5 or 51/4

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