Class 9 Math Logarithm Table 1 To 100

First you have to know how to use the log table.

Class 9 math logarithm table 1 to 100.

Understand the concept of the logarithm. Expressed mathematically x is the logarithm of n to the base b if b x n in which case one writes x log b n for example 2 3 8. Convert the following to logarithmic form. The table below lists the common logarithms with base 10 for numbers between 1 and 10.

Logarithms had originally developed to simplify complex arithmetic calculations they designed to transform multiplicative processes into additive ones. So 2 is the exponent value and the value of log 10 100 2. Log b x y log b x log b 1 y x log b x y log b x log b 1 y x logarithmic table. What is the value of log 10 100.

In the same fashion since 10 2 100 then 2 log 10 100. We can also use logarithm table to find the logarithm of a number. The log table is given for the reference to find the values. Each log table is only usable with a certain base.

I 5 2 25 ii a 5 64 iii 7 x 100 iv 9 1. Since 2 6 2 2 2 2 2 2 64 6 is the exponent value and log 2 64 6. Ml aggarwal class 9 solutions for icse maths chapter 9 logarithms. For instance the first entry in the third column means that the common log of 2 00 is 0 3010300.

The most common type of logarithm table is used is log base 10. Solve log 2 64. Logarithms of the latter sort that is logarithms. Logarithm the exponent or power to which a base must be raised to yield a given number.

On a calculator it is the log button. X log 10 x log 2 x log e x. Identify the characteristic part and mantissa part of the given. It is how many times we need to use 10 in a multiplication to get our desired number.

Anti log can be found out from anti log table in the same manner as log the main difference is that an anti log table contains numbers from 00 to 99 in the extreme left column. Therefore 3 is the logarithm of 8 to base 2 or 3 log 2 8. Engineers love to use it. Log 100 this usually means that the base is really 10.

It is not always necessary to find the logarithm of a number by mere calculation. In this case 10 2 yields you 100. The logarithm is denoted in bold face. It is called a common logarithm.