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Multiply $-1$ times $3$
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$derivdef\left(-3\cdot -3\right)$
Learn how to solve definition of derivative problems step by step online. Find the derivative of -*3*-3 using the definition. Multiply -1 times 3. Multiply -3 times -3. Find the derivative of 9 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 9. Substituting f(x+h) and f(x) on the limit, we get. Subtract the values 9 and -9.