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Multiply $-1$ times $-2$
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$derivdef\left(-4+2\right)$
Learn how to solve definition of derivative problems step by step online. Find the derivative of -4-*-2 using the definition. Multiply -1 times -2. Subtract the values 2 and -4. 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.