
How do you evaluate
Answer
471.6k+ views
Hint:In order to solve this question, firstly we have to understand what logarithm of a number means. If the written logarithm of in base equals , then it means is equal to raised to the power of . Understanding this mathematically as follows
Use this information to evaluate the given logarithm.
Complete step by step answer:
In order to evaluate , let us understand first what logarithm means in a general way and the function of a logarithmic function.Consider a logarithm of with base equal to , it means that when is raised to the power of then it will equal to , let’s understand this in mathematical way or in equations
It is the mathematical form of the first part of the consideration. Now coming to second part
It is the mathematical form of the second part.
Hope that you got to understand the logarithmic function.
Now let’s come to the question, that is or logarithm of with base .Let us consider equals to , then it will be written in mathematical equation as follows,
Now writing this equation as equation (i) is written, we get
Solving this further, by converting into multiples of ,
Now comparing the power of both sides, because their bases are same i.e. we get,
We got the value of that means,
Note:Logarithm has some strict rules with it, that is the base of logarithm should be greater than and should not be equal to , also logarithmic functions never take negative arguments. These limits are sometimes used to solve logarithmic problems.
Use this information to evaluate the given logarithm.
Complete step by step answer:
In order to evaluate
It is the mathematical form of the first part of the consideration. Now coming to second part
It is the mathematical form of the second part.
Hope that you got to understand the logarithmic function.
Now let’s come to the question, that is
Now writing this equation as equation (i) is written, we get
Solving this further, by converting
Now comparing the power of both sides, because their bases are same i.e.
We got the value of
Note:Logarithm has some strict rules with it, that is the base of logarithm should be greater than
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