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(b) A simple way would be as follows. Let z=t, where 2

(b) A simple way would be as follows. Let z=t, where 2

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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hi, i got the workings and explaination already, but i have no idea whats going on at all, please help to explain ! such as sin and cos where did it come from, and how should i cope with this type of questions should i ever face them

(b) A simple way would be as follows. Let z=t, where 2<t<9. It follows that x + y = t-1. We can then choose x= \t-1cos(u) and y= Vt-1sin(1) , where u is another free parameter. Thus, a parametric representation for the surface is given by x= Vt-1 cos(u), y= \t-1sin(u) '} for 2<t<9. Z= t
Transcribed Image Text:(b) A simple way would be as follows. Let z=t, where 2<t<9. It follows that x + y = t-1. We can then choose x= \t-1cos(u) and y= Vt-1sin(1) , where u is another free parameter. Thus, a parametric representation for the surface is given by x= Vt-1 cos(u), y= \t-1sin(u) '} for 2<t<9. Z= t
(b) 1+ x² + y –z = 0 for 2< z<9.
Transcribed Image Text:(b) 1+ x² + y –z = 0 for 2< z<9.
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