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Core Pure

Quick questions on Hyperbolic functions: definitions, identities, inverses and calculus - Edexcel A-Level Further Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Show that cosh⁡2x−sinh⁡2x=1\cosh^2 x - \sinh^2 x = 1 from the definitions. [3 marks]
What is q2?
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Differentiate y=cosh⁡3xy = \cosh 3x. [2 marks]
What is q3?
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Solve cosh⁡x=2\cosh x = 2, giving exact logarithmic answers. [3 marks]

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