Q. Solve the following logarithm problem for the positive solution for x.log25x=21Answer:
Understand the logarithmic equation: Understand the logarithmic equation.We are given the logarithmic equation log25(x)=21. This means that we are looking for a number x such that when 25 is raised to the power of 21, we get x.
Convert to exponential form: Convert the logarithmic form to exponential form.Using the definition of a logarithm, we can rewrite the equation in exponential form: 2521=x.
Calculate value of 25: Calculate the value of 25 raised to the power of 1/2. Since raising a number to the power of 1/2 is the same as taking the square root, we find that 251/2 is the square root of 25, which is 5.
Write down the solution: Write down the solution.Therefore, the positive solution for x is x=5.
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