Prove that cosh3x = 4cosh 3 x 3coshx.

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Prove that cosh3x = 4cosh³x – 3coshx.

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Cambridge International AS & A Level Further Mathematics Coursebook

ISBN: 9781108403375

1st Edition

Authors: Lee Mckelvey, Martin Crozier

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Question Posted: Oct 08, 2021 02:42 AM

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a. Prove that 4cosh 3 x 3coshx = cosh 3x. b. Hence, solve cosh3x = 5 coshx.
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Prove that cosh3x = 4cosh 3 x 3coshx.

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Prove that Cos h 3x 4 Cos h 3x 3 Cos hx Cos h 3x Cosh 2...View the full answer

Cambridge International AS & A Level Further Mathematics Coursebook

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