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Explore logarithmic properties for positive numbers and rational exponents, including ln(e) = 1 and ln(1) = 0. Learn how to find the derivative of an inverse function using implicit differentiation and inverse functions. Understand the relationship between inverse functions and reciprocal slopes in their graphs.
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If a and b are positive numbers and n is rational, then the following properties are true: 1. ln(e) = 1 2. ln(1) = 0 3. ln(ab) = lna + lnb 4. ln( )= nlna 5. ln( )= lna – lnb
To find the derivative of an inverse function: • Find inverse: Switch x and y • Find derivative: Use implicit differentiation • Solve for y: Use inverse function • Substitute y into derivative