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6.2a Differential Equations Growth and Decay - Calculus

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odinheim commented on 11 Mar 2010
Thanks for posting your videos I find Differential equations a difficult and challenging topic , I will have on the 25 may 2010 the exams and I wonder If I will make it my algebra is not strong enough , I did tried this problem by my self but I did not come with the same result as you the general solution to this D:E was y=100-x, I cant find what I did wrong , I think it was when I did the calculation of the logarithmic , well any hints ?
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ChevySevenAteSeven commented on 09 Mar 2010
Thanks, been disregarding calculus all week since I know I can come here and master it more efficiently. I'm sad though, you don't go to further chapters, but I'll have to battle through on my own with the skills you've showed me through all these months.
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WOWmath.org commented on 05 Mar 2010
I do not know if you realize that I am recording this as I teach my AP Calculus Class. That might be why I am asking questions. Thanks for the feedback.
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hen c commented on 05 Mar 2010
good job but i think its better if you just explain the concepts and algebra involved, without questioning the viewer for every step
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Ellen Chu commented on 09 Mar 2011
@angelofpeace84 the -1 came from du cause when you take the derivative of 100-y, it's -1du. so he just put that up in front.
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john kinny-lewis commented on 07 Sep 2012
Great pace for this more advaced topic.
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angelofpeace84 commented on 25 Jul 2010
Where did the -1 come from at 2:27?
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Barack Lasagna commented on 31 Mar 2013
you are ofc now my hero robbworld
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hen c commented on 09 Mar 2010
oh sorry for my ignorance! xD
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WOWmath.org commented on 10 Mar 2010
Be careful procrastinating
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spontaneousgemini601 commented on 10 Feb 2013
Anywho!.. lol
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musashqa commented on 18 Feb 2010
nice, thanx
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borderm3 commented on 21 Sep 2010
Excellent!
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WOWmath.org commented on 20 Feb 2010
No problem

Differential Equations, Class #6, Slope Fields, Existence & Uniqueness, Phase Lines

(0:00) Encouragement to gain Mathematica skills for future jobs/grad school. (1:40) Mathematica and Valentine's day. (2:57) Overview of the plan for the class ...

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Tommy Saechao commented on 20 Feb 2015
Hey! These videos are really helpful! Can you keep on posting more? There are not many videos or lecture videos on YouTube that I can find on Differential Equations. 
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Tommy Saechao commented on 21 Feb 2015
+Bill Kinney Awesome! I am using the same book for my class. 
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Bill Kinney commented on 20 Feb 2015
Yup.  There will typically be 3 posted per week from now until mid-May, 2015 (except during our spring break and when we have exams).  The book we use is by Blanchard, Devaney, and Hall, so the lectures work best if you are studying that book at the same time.  Thanks for watching!

ODE | Existence and uniqueness idea

Examples and explanations for a course in ordinary differential equations. ODE playlist: ...

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lisro21 commented on 24 Jan 2014
I just subscribed...you just saved me from hours of confusion
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Farhan Janjua commented on 10 Feb 2014
same here

Introduction to Differential Equations

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