d Calculate r1(t)·r2(t)] and ri(t) × r2(t)] first by differentiating dt dt the product directly and then by applying the formulas d [ri(t) r2(t)] = r1(t). dr2, dri r2(t) and dt dt dt d dr2, dri [ri(t) x r2(t)] = ri(t) x dt x r2(t). dt dt ri(t) = cos(t)i + sin(t)j+ 3tk, r2(t) = 2i + tk d [ri(t) r2(t)] = dt

d Calculate r1(t)·r2(t)] and ri(t) × r2(t)] first by differentiating dt dt the product directly and then by applying the formulas d [ri(t) r2(t)] = r1(t). dr2, dri r2(t) and dt dt dt d dr2, dri [ri(t) x r2(t)] = ri(t) x dt x r2(t). dt dt ri(t) = cos(t)i + sin(t)j+ 3tk, r2(t) = 2i + tk d [ri(t) r2(t)] = dt

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter1: Fundamental Concepts Of Algebra

Section1.3: Algebraic Expressions

Problem 40E

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