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1.10 G: Differentiation

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Question 54

For a real variable ttt, use the quotient rule and the known derivatives of sin⁡t \sin t\,sint and cos⁡t \cos t\,cost to demonstrate that:

a.
ddt(tan⁡t)=sec⁡2t \frac{d}{dt}(\tan t) = \sec^2 t dtd​(tant)=sec2t
[3]
b.
ddt(sec⁡t)=sec⁡ttan⁡t \frac{d}{dt}(\sec t) = \sec t \tan t dtd​(sect)=secttant
[3]
c.
ddt(cot⁡t)=−csc⁡2t \frac{d}{dt}(\cot t) = -\csc^2 t dtd​(cott)=−csc2t
[3]
d.
ddt(csc⁡t)=−csc⁡tcot⁡t \frac{d}{dt}(\csc t) = -\csc t \cot t dtd​(csct)=−csctcott
[3]

1.10 G: Differentiation Questions

  1. A Level
  2. /Maths
  3. /1.10 G: Differentiation

Practise AQA A Level Maths 1.10 G: Differentiation with exam-style questions for A Level Maths. 321 questions covering 1.10.1 The derivative and second derivative, 1.10.2 Differentiating standard functions, 1.10.3 Applications of differentiation, 1.10.4 Product, quotient and chain rules (A-level only), 1.10.5 Implicit and parametric differentiation (A-level only), and 1.10.6 Constructing differential equations (A-level only), matched to the AQA A Level Maths (7357) 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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