C₁: r₁(s) C₂: r₂(t) C3 r3(u) = = = (s 2)i+ (2s² - 1)j + k 2t² i + (3t+7)j + (t+1) k (SER) (t = R) (u²+ 4u + 3)i + (u² + 6)j + (u + 2) k (u € R)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
Problem 18T
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Question
(b) Let C₁, C₂2 and C3 be the curves in R³ with parametrisations
C₁:
r₁(s)
(s − 2)i + (2s² − 1)j + k
(SER)
C₂
r₂(t)
2t² i + (3t+7)j + (t+1) k
(t = R)
C3
r3(u)
(u² + 4u+3)i + (u² + 6)j + (u + 2)k (u ¤R)
=
=
=
respectively.
(i) Show that C₁, C₂ and C3 intersect at the point (0, 7, 1).
answer.
(ii) Find the tangent vectors to the curves C₁, C₂ and C3 at the point
(0, 7, 1).
Do these tangent vectors lie in a common plane in R³? Justify your
(iii) Is it possible to find a surface z = h(x, y) for which the curves C₁, C₂
and C3 all lie on this surface? Justify your answer.
Transcribed Image Text:(b) Let C₁, C₂2 and C3 be the curves in R³ with parametrisations C₁: r₁(s) (s − 2)i + (2s² − 1)j + k (SER) C₂ r₂(t) 2t² i + (3t+7)j + (t+1) k (t = R) C3 r3(u) (u² + 4u+3)i + (u² + 6)j + (u + 2)k (u ¤R) = = = respectively. (i) Show that C₁, C₂ and C3 intersect at the point (0, 7, 1). answer. (ii) Find the tangent vectors to the curves C₁, C₂ and C3 at the point (0, 7, 1). Do these tangent vectors lie in a common plane in R³? Justify your (iii) Is it possible to find a surface z = h(x, y) for which the curves C₁, C₂ and C3 all lie on this surface? Justify your answer.
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