# a. Show that the expansion of q(x) in ascending powers of x can be approximated to 10 2x +

## Question:

a. Show that the expansion of q(x) in ascending powers of x can be approximated to 10 − 2x + Bx^{2} + Cx^{3} where B and C are constants to be found.

b. Find the percentage error made in using the series expansion in part b to estimate the value of q(0.1). Give your answer to 2 significant figures.

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**Related Book For**

## Pearson Edexcel A Level Mathematics Pure Mathematics Year 2

**ISBN:** 9781292183404

1st Edition

**Authors:** Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran

**Question Details**

Chapter #

**4**Section: Mixed exercise

Problem: 15

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