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1.7.18 Chain rule (A-level only)

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Question 44

A biological culture's sensitivity to a stimulant, $S$ , is modeled as a function of the concentration $c$ (in mmol/L) by the formula:

\left( \frac{1}{2}c^4 - \frac{8}{c} \right)^9

Use the chain rule to find an expression for the rate of change of sensitivity with respect to concentration, $dSdc\frac{dS}{dc}$ .

[3]

Markscheme

1.7.18 Chain rule (A-level only) Questions

A Level
Maths
1.7.18 Chain rule (A-level only)

74 exam-style questions on OCR A Level Maths 1.7.18 Chain rule (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

1.7.18 Chain rule (A-level only)

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1.7.18 Chain rule (A-level only)

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Question 44

A biological culture's sensitivity to a stimulant, $S$ , is modeled as a function of the concentration $c$ (in mmol/L) by the formula:

\left( \frac{1}{2}c^4 - \frac{8}{c} \right)^9

Use the chain rule to find an expression for the rate of change of sensitivity with respect to concentration, $dSdc\frac{dS}{dc}$ .

[3]

Markscheme

1.7.18 Chain rule (A-level only) Questions

A Level
Maths
1.7.18 Chain rule (A-level only)

74 exam-style questions on OCR A Level Maths 1.7.18 Chain rule (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.