Reparametrize the curve with respect to arc length measured from the point where t = 0 in the direction of increasing t. (Enter your answer in terms of s.) r(t) = e2t cos(2t)i + 4j + e²t sin(2t) k
Reparametrize the curve with respect to arc length measured from the point where t = 0 in the direction of increasing t. (Enter your answer in terms of s.) r(t) = e2t cos(2t)i + 4j + e²t sin(2t) k
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
Problem 20T
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Step 1: Introduce to the given information
VIEWStep 2: Introduce to the formulas used
VIEWStep 3: Determining the derivative of the function
VIEWStep 4: Determining the norm of the derivative function
VIEWStep 5: Determining the parametrization with respect to arc length
VIEWStep 6: Reparametrize the given curve
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The identity of (a-b)^2+(a+b)^2 = 2(a^2+b^2) helped clean things up a lot. However, "ln" has to be used with "e" rather than "log." The answer was not accepted by the homework system with "log," and it does give a different value when computed. Perhaps it was thought that "e" was a variable here instead of Euller's number. Could you please make this correction to the answer for other students who may look at it? Thank you.
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