Consider the following vector functions: r(t)= tcost i + 2t sint j + 2 tk for t ≥ 0 t≥ 0. a. The function r(t) describes a curve that lies on a cone with equation √(4x2+y2) b. The function r(t) describes a curve that lies on a cone with equation √(1/4 x2 + y2) c. The function r(t) describes a curve that lies on a cone with equation √(2x2+y2) d. The function r(t) describes a curve that lies on a cone with equation √(1/2 x2+y2)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Consider the following vector functions:

r(t)= tcost i + 2t sint j + 2 tk for t ≥ 0 t≥ 0.

a. The function r(t) describes a curve that lies on a cone with equation √(4x2+y2)
b. The function r(t) describes a curve that lies on a cone with equation √(1/4 x2 + y2)
c. The function r(t) describes a curve that lies on a cone with equation √(2x2+y2)
d. The function r(t) describes a curve that lies on a cone with equation √(1/2 x2+y2)
 
 
 
 
 
 



 

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