Media Summary: Um so they've given us uh Vector a which is Okay question 10 part one um is given us the position vectors of two uh points P which is 5 2 - 9 and Q 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
Core 4 Ocr Jan 2007 - Detailed Analysis & Overview
Um so they've given us uh Vector a which is Okay question 10 part one um is given us the position vectors of two uh points P which is 5 2 - 9 and Q 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 ... 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