Q. Find the value of x that solves the equation ln(x−1)=2−ln2.Answer:
Understand and Isolate Variable Term: Understand the equation and isolate the variable term.We have the equation ln(x−1)=2−ln2. To solve for x, we need to isolate the term containing x on one side of the equation.
Combine Right Side Terms: Use properties of logarithms to combine the terms on the right side of the equation.We can use the property of logarithms that states ln(a)−ln(b)=ln(ba) to combine the terms on the right side of the equation. This gives us ln(x−1)=ln(2e2).
Equate Arguments of Logarithms: Since the natural logarithm function ln is the inverse of the exponential function with base e, we can equate the arguments of the logarithms to solve for x. If ln(x−1)=ln(2e2), then x−1=2e2.
Solve for x: Solve for x by adding 1 to both sides of the equation.x=2e2+1
Calculate Final Value: Calculate the value of e2/2+1. We know that e is approximately 2.71828, so e2 is approximately 7.38906. Dividing this by 2 gives us approximately 3.69453. Adding 1 to this gives us x≈4.69453.
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