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QUESTION 4 Find the unit tangent vector of r(t) = -4 5 = V-42 = i+ln(t)k, 1

QUESTION 4 Find the unit tangent vector of r(t) = -4 5 = V-42 = i+ln(t)k, 1

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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I need help with both of these I started number 4 but got a little confused and not sure if I’m doing it correctly. Step by step please
QUESTION 4 Find the unit tangent vector of r(t) = -4 5 = V-42 = i+ln(t)k, 1<t< 20. QUESTION 5 Write the line segment given by r(t) = (1 - 2t)i + 6tj + (1 + 3t)k as a function r(s) parameterized by the arc- length s from the point where t = 1. Write your answer using standard unit vector notation. r(s) =
Transcribed Image Text:QUESTION 4 Find the unit tangent vector of r(t) = -4 5 = V-42 = i+ln(t)k, 1<t< 20. QUESTION 5 Write the line segment given by r(t) = (1 - 2t)i + 6tj + (1 + 3t)k as a function r(s) parameterized by the arc- length s from the point where t = 1. Write your answer using standard unit vector notation. r(s) =
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