11.1 Integrating Standard Functions
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a.

A metal worker is crafting a sculpture where the upper profile is defined by the curve with equation

y=15x2−12xy = \frac{1}{5}x^2 - \frac{12}{\sqrt{x}}y=51​x2−x​12​

at the point Q(4,−2.8)Q(4, -2.8)Q(4,−2.8).

Find the equation of the tangent to this profile at point QQQ.

Give your answer in the form ax+by+c=0ax + by + c = 0ax+by+c=0, where aaa, bbb and ccc are integers.

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b.

The lower profile of the sculpture, given by the curve with equation y=f(x)y = f(x)y=f(x), also passes through the point Q(4,−2.8)Q(4, -2.8)Q(4,−2.8). Given that

f′(x)=15x2−12xf'(x) = \frac{1}{5}x^2 - \frac{12}{\sqrt{x}}f′(x)=51​x2−x​12​

find the expression for f(x)f(x)f(x), giving the coefficients in simplest form.

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11.1 Integrating Standard Functions Questions

Practise Edexcel A Level Maths 11.1 Integrating Standard Functions with exam-style questions for A Level Maths. 81 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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11.1 Integrating Standard Functions Questions

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