Given that y = x 2 /cos 4x, find a. dy/dx, b. The approximate change in y

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Given that y = x²/cos 4x, find

a. dy/dx,

b. The approximate change in y when x increases from π/4 to π/4 + p, where p is small.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Sep 02, 2021 12:49 AM

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Given that y = x 2 /cos 4x, find a. dy/dx, b. The approximate change in y

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Step by Step Answer:

a To find dydx we can use the chain rule Let u cos 4x then y x2u So dydx ddx x2u 2xu ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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