Q. Solve the following logarithm problem for the positive solution for x.logx729=56Answer:
Understand given logarithmic equation: Understand the given logarithmic equation.We are given the logarithmic equation logx729=56. We need to find the value of x that makes this equation true.
Convert to exponential form: Convert the logarithmic equation to its exponential form.The logarithmic equation logx729=56 can be rewritten in its exponential form as x56=729.
Recognize 729 as power of 3: Recognize that 729 is a power of 3. We know that 729 is 3 raised to the power of 6 because 36=729.
Set exponential equation with base 3: Set the exponential equation with the base of 3.Since x56=729 and 729=36, we can write x56=36.
Solve for x by taking 5th root: Solve for x by taking the 5th root of both sides.To isolate x, we take the 5th root of both sides of the equation. This gives us x=(36)1/5.
Simplify expression for x: Simplify the expression for x. Using the property of exponents (am)n=am∗n, we simplify x=(36)1/5 to x=36/5.
Calculate value of x: Calculate the value of x.Since 36/5 is the same as 36/5, we find that x=36/5=31+1/5=3×31/5.
Recognize 5th root of 3: Recognize that 31/5 is the 5th root of 3.The 5th root of 3 is simply 3, so x=3×3=9.
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