a Given that y 1 x 2 7, show that dy dx kx (x 2 7) 2 , and state the value of k b Hence finds 4x dx (x 7) ...

a To find dydx we can use the chain rule of differentiation Let u 1x so y u2 7 Then dydu 2u Using ...

a. Given that y = 1/x 2 7, show that dy/dx = kx/(x 2 7)

Question:

a. Given that y = 1/x² – 7, show that dy/dx = kx/(x² – 7)², and state the value of k.

b. Hence finds

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

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Authors: Sue Pemberton

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a. Given that y = 1/x 2 7, show that dy/dx = kx/(x 2 7)

Question:

4x dx. (x² – 7)*

Step by Step Answer:

a To find dydx we can use the chain rule of differentiation Let u 1x so y u2 7 Then dydu 2u Using ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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