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Subtract the values $9$ and $-4$
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$derivdef\left(\ln\left(5\right)\right)$
Learn how to solve definition of derivative problems step by step online. Find the derivative of ln(9-4) using the definition. Subtract the values 9 and -4. Calculating the natural logarithm of 5. Find the derivative of \ln\left(5\right) using the definition. Apply the definition of the derivative: \displaystyle f'(x)=\lim_{h\to0}\frac{f(x+h)-f(x)}{h}. The function f(x) is the function we want to differentiate, which is \ln\left(5\right). Substituting f(x+h) and f(x) on the limit, we get. Subtract the values \ln\left(5\right) and -\ln\left(5\right).