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Subtract the values $3$ and $-4$
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$derivdef\left(2\cdot -1\right)$
Learn how to solve definition of derivative problems step by step online. Find the derivative of 2(3-4) using the definition. Subtract the values 3 and -4. Multiply 2 times -1. Find the derivative of -2 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 -2. Substituting f(x+h) and f(x) on the limit, we get. Subtract the values 2 and -2.