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avatar+333 

If you differente \(y=2x^2+4\)

you get 4x so \(\frac{dy}{dx}\) of \(y=2x^2+4\)

is \(4x\) But if you do \(\frac{d^2y}{dx^2}\)

do you just square the orginial differentation? or do you square \(y=2x^2+4\) then differentiate? Please help!

 Mar 8, 2016
edited by Misaki  Mar 8, 2016

Best Answer 

 #2
avatar+333 
+5

Thank you very much! 

 Mar 8, 2016
 #1
avatar+129899 
+5

d2y / dx2   is the notation for the second derivative .....many times this is written as ...  y "....it is the derivative of the first derivative

 

So

 

y "    of 4x   = 4  

 

 

 

cool cool cool   

 Mar 8, 2016
 #2
avatar+333 
+5
Best Answer

Thank you very much! 

Misaki Mar 8, 2016
 #3
avatar+129899 
0

No prob, Misaki    !!!!

 

 

 

cool cool cool

 Mar 8, 2016
 #4
avatar+129899 
0

Misaki, I made a slight error in the explanation...I meant to say that :

 

y"   of    y = 2x^2 + 4   =    4

 

 

 

cool cool cool

 Mar 8, 2016
 #5
avatar+333 
0

It's ok i still understood you!

 Mar 8, 2016

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