Indices and Logarithm
Section outline
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Indices is the word derived from Latin, in which index means "one who points out", an "indication", or a "forefinger". In Latin, the plural form of the word is indices. An index number is a number which is raised to a power.
The power, also known as the index, tells you how many times you have to multiply the number by itself.
For example, 25 means that you have to multiply 2 by itself five times = 2 × 2 × 2 × 2 × 2 = 32.
The knowledge of standard form will help you to understand the concept of indices.
The laws of indices to consider in this unit are; addition law, multiplication law, power law, negative law and fractional law.
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