d.dCalculate ri(t) · r2(t)] and [r1(t) × r2(t)] first by differentiatingdtdtthe product directly and then by applying the formulasddr2dr1[r:(t) · r2(t)] = r;(t) -r2(t) anddtdtdtdri(t) x r2(t)] =r;(t) xdr2drix r2(t).dtdtdtri(t) = cos(t)i + sin(t)j+ 8tk,r2(t) = 7i + tkddiri(t) · r2(t)] =dd r: (t) x r2(t)]

Answered: Image /qna-images/answer/bf22d19a-1d52-4547-9650-35a6534039e3.jpg

d d Calculate ri(t) · r2(t)] and [ri(t) × r2(t)] first by differentiating dt the product directly and then by applying the formulas d dri dr2 [r:(t) • r2(t)] = r1(t) · r2(t) and dt dt dt dr2 + [r1(t) × r2(t)] = r1(t) × dt dt d dri x r2(t). dt ri(t) = cos(t)i + sin(t)j+ 8tk, r2(t) = 7i + tk d ri(t) · r2(t)] dt d. [r(t) x r2(t)] : dt

d d Calculate ri(t) · r2(t)] and [ri(t) × r2(t)] first by differentiating dt the product directly and then by applying the formulas d dri dr2 [r:(t) • r2(t)] = r1(t) · r2(t) and dt dt dt dr2 + [r1(t) × r2(t)] = r1(t) × dt dt d dri x r2(t). dt ri(t) = cos(t)i + sin(t)j+ 8tk, r2(t) = 7i + tk d ri(t) · r2(t)] dt d. [r(t) x r2(t)] : dt

Elements Of Modern Algebra

8th Edition

ISBN:9781285463230

Author:Gilbert, Linda, Jimmie

Publisher:Gilbert, Linda, Jimmie

Chapter1: Fundamentals

Section1.6: Matrices

Problem 4E: Let A=[aij]23 where aij=i+j, and let B=[bij]34 where bij=2ij. If AB=[cij]24, write a formula for cij...

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