d Calculate [r₁(t) · r₂(t)] and [r₁(t) × r2(t)] first by differentiating the product directly and then by applying the formulas d dr2 dr₁ [r₁(t) r₂(t)] = r₁(t). + r₂(t) and dt dt dt d dr₂ dri [r₁(t) × r₂(t)] = r₁(t) × + x r₂(t). dt dt dt

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.3: Change Of Basis
Problem 17EQ
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d
d
Calculate[ri(t) · r₂(t)] and[r₁(t) × r₂(t)] first by differentiating
dt
the product directly and then by applying the formulas
d
¿[r₁(t) · r₂(t)] = r₁(t) · + r₂(t) and
dr₂ dr₁
dt
dt
dt
d
-[r₁(t) × r2(t)] = r₁(t) × + x r₂(t).
dr₂ dri
dt dt
dt
r₁(t) = 5ti + 6t²j+8t³k, r₂(t) = t¹k
#4
d.
dt
[r₁(t) · r2(t)] =
=
d
[r₁(t) × r₂(t)] =
dt
Transcribed Image Text:d d Calculate[ri(t) · r₂(t)] and[r₁(t) × r₂(t)] first by differentiating dt the product directly and then by applying the formulas d ¿[r₁(t) · r₂(t)] = r₁(t) · + r₂(t) and dr₂ dr₁ dt dt dt d -[r₁(t) × r2(t)] = r₁(t) × + x r₂(t). dr₂ dri dt dt dt r₁(t) = 5ti + 6t²j+8t³k, r₂(t) = t¹k #4 d. dt [r₁(t) · r2(t)] = = d [r₁(t) × r₂(t)] = dt
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