Evaluate or simplify each expression without using a calculator. In e9x
Ch. 4 - Exponential and Logarithmic Functions

5장, 문제 97
Evaluate or simplify each expression without using a calculator.
검증된 단계별 안내1
Recognize that the expression is \(e^{(\ln 5x^2)}\), which involves the exponential function and the natural logarithm function.
Recall the property of logarithms and exponentials: \(e^{\ln a} = a\) for any positive \(a\).
Apply this property to simplify \(e^{(\ln 5x^2)}\) directly to \$5x^2$.
Note that this simplification holds as long as the argument inside the logarithm, \$5x^2$, is positive, which means \(x \neq 0\).
Therefore, the simplified form of the expression is \$5x^2$.

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주요 개념
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Properties of Exponents
Understanding how to manipulate expressions with exponents is essential. For example, the rule e^(a + b) = e^a * e^b allows breaking down complex exponentials, and e^(ln x) simplifies directly to x when x is positive.
추천 영상:
Rational Exponents
Natural Logarithm (ln) and Its Inverse Relationship with Exponentials
The natural logarithm ln(x) is the inverse function of the exponential function e^x. This means e^(ln y) = y for y > 0, which helps simplify expressions like e^(ln 5x^2) directly to 5x^2.
추천 영상:
Solving Logarithmic Equations
Simplifying Algebraic Expressions
After applying logarithmic and exponential properties, simplifying the resulting algebraic expression is necessary. This includes understanding how to handle powers, coefficients, and variables, such as recognizing that (x^2) remains as is unless further simplification is possible.
추천 영상:
Simplifying Algebraic Expressions
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