d d Calculate ri(t) · r2(t)] and ri(t) × r2(t)] first by differentiating dt dt the product directly and then by applying the formulas d dri [r:(t) · r2(t)] = r1(t) · dr2 + dt r2(t) and dt dt dr2 + dt d dri 7ri(t) x r2(t)] = r¡(t) × x r2(t). dt dt ri(t) = 9ti + 6tj+ 7t°k, r2(t) = t*k d [r:(t) · r2(t)] = d dri(t) x r2(t)] :

d d Calculate ri(t) · r2(t)] and ri(t) × r2(t)] first by differentiating dt dt the product directly and then by applying the formulas d dri [r:(t) · r2(t)] = r1(t) · dr2 + dt r2(t) and dt dt dr2 + dt d dri 7ri(t) x r2(t)] = r¡(t) × x r2(t). dt dt ri(t) = 9ti + 6tj+ 7t°k, r2(t) = t*k d [r:(t) · r2(t)] = d dri(t) x r2(t)] :

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter4: Eigenvalues And Eigenvectors

Section4.2: Determinants

Problem 20EQ

See similar textbooks