Q. Simplify eln2−ln4 and write without any logarithms.Answer:
Understand Properties: Understand the properties of logarithms and exponents.The expression e(ln2−ln4) involves the natural logarithm, ln, and the natural exponential function, e. The natural logarithm ln(x) is the inverse function of the exponential function ex. Therefore, e(lnx)=x for any positive number x. Also, the difference of logarithms ln(a)−ln(b) is equivalent to the logarithm of the division of a by b, ln0. We will use these properties to simplify the expression.
Combine Logarithms: Apply the logarithm property to combine the logarithms.Using the property that ln(a)−ln(b)=ln(ba), we can rewrite the exponent as a single logarithm:eln2−ln4=eln(42).
Simplify Fraction: Simplify the fraction inside the logarithm.The fraction 42 can be simplified to 21, so we have:eln(42)=eln(21).
Apply Inverse Property: Apply the inverse property of logarithms and exponents.Using the property that elnx=x, we can simplify the expression to get the final result:eln(21)=21.
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