q3b_soln

q3b_soln - Math 415.01 Quiz 3 11:30 recitation(Vutha The...

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Math 415.01 - Quiz 3 - 11:30 recitation (Vutha) The following quiz is worth 25 points. You have 20 minutes to attempt it. Please show all work. Answers without work will receive no credit. You may use both sides of the paper. name.number : V (A 'H.\C3L o I 4+0, real» cal-4M (1) (13 pts) Is the following equation exact ‘? If yes, ﬁnd; so ution.-H~ak, on y . (yew cos(2a:) — 2e” sin(2m) + 2:5)d2: + (xe’y cos(3m) — 3)dy = 0 (2) (12 pts) Find all equilibria and stability for the given equation. Also draw a phase line and sketch a few solutions. %=ay2—by, a>0, b>0,y020 O Vl: yexllooscbc) ‘ ZQXYSMZX + 1X N ‘— xefyCOSCZX) :3 M7 = 7 (ﬂex) Cos (2x) + eI‘Y. CosClx) ~1C€iﬂ .Sm Clx) Nx: xCe/xl.y).co§£lx) -+ (0.6% 0031} + X67 ~15!“ 1x) U? 50 eﬁm J~A7 : j @93in (3X) _5) .A7 : x eff €05 (33¢) __ x #Cmf) : (aw-C0369 ‘3/ OLX) ...
View Full Document

{[ snackBarMessage ]}

Page1 / 2

q3b_soln - Math 415.01 Quiz 3 11:30 recitation(Vutha The...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online