Media Summary: Um so they've given us uh Vector a which is ... cos we get S so that's going to be sin 4X but we're also going to need to divide by the coefficient of x there which is Which is just the magnitude of this Vector here um the vector a to0 which is just the negative of this a to O is going to be minus
Ocr Core 4 Jan 2007 - Detailed Analysis & Overview
Um so they've given us uh Vector a which is ... cos we get S so that's going to be sin 4X but we're also going to need to divide by the coefficient of x there which is Which is just the magnitude of this Vector here um the vector a to0 which is just the negative of this a to O is going to be minus ... products and see what happens we've got -1 * 1 which is -1 2 * 2 which is ... to need to be point two two sets of brackets and probably with the next take OCR Core 4 Jan 2007 q5ii - A2 Maths - Binomial Expansion
Okay five part one and wants us to expand this up to X cubed so we need Our limits are two and one so when we put two in we're going to get