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

## 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.

Fantastic news! We've Found the answer you've been seeking!

## Step by Step Answer:

**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