Properties of Logarithms
Let us suppose we are given 3 numbers: 2, 3 and 9.
Now, we know that 32 = 9
The above two expressions are formed by combining 2 and 3, and 2 and 9 respectively to get the third number.
Is there an expression wherein we can combine 3 and 9 to get 2?
3 and 9 can be combined to get 2 as:
Here, ‘log’ is the abbreviated form of a concept called ‘Logarithms’.
The expression can be read as ‘logarithm of 9 to the base 3 is equal to 2’.
In general, if a is any positive real number (except 1), n is any rational number such that , then n is called the logarithm of b to the base a, and is written as.…
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