Indices

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Indices

Fractional Indices

Law of fractional indices

Comparing Indices

Prefixes

A common set of ecimal-based prefixes is applied to some units whoch are too large or too small for practical use without adjustment. The effect of the prefixes is to multiply or divide the unit by a factor of ten, one hundred or an integer power of one thousand. The prefix kilo, for example, is used to multiply the unti by 1000 and the prefix milli is to indicate a one-thousandth part of the unit. 1 mg = 0.001g 1 km = 1000m

Prefixes table

Standard Form

Standard Form:

Example 3:

Example 2:

Example 1:

How to solve indices equations

Example 3

Example 2

Example 1

Index Laws

The reason for learning indices

To be able to key into the calculator easier without having to repeat multiplying the same number again and again.

Arithmetic: The mathematics of integers, rational numbers, real numbers, or complex numbers under the operations of addition, subtraction, multiplication, and division.

To do arithmetic & calculation with large no. efficiently

To represent no. in a shorter way

Eg(s). 3³ = 3×3×3 2¹ = 2 2² = 2×2 2³ = 2×2×2

What is indices?

Indices is a expression used to write very small or very big numbers.