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Year 11 Methods (Unit 1 & 2) Applications Of Differentiation Of Polynomials

Applications To Maximum And Minimum Problems

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Question 1
193946
A rectangle has one side of length \(x~\text{cm}\). Its area, in \(\text{cm}^2\), is modelled by \(A=20x-x^2\). Find \(\dfrac{dA}{dx}\).
\(20-2x\)

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