Don't really know where to start with a). I would appreciate any help.
P pav99 New member Joined Apr 6, 2020 Messages 1 Apr 6, 2020 #1 Don't really know where to start with a). I would appreciate any help.
MarkFL Super Moderator Staff member Joined Nov 24, 2012 Messages 3,021 Apr 6, 2020 #2 Hello, and welcome to FMH! Let's look at: [MATH]\frac{d^2}{dx^2}(I(x)y(x))[/MATH] Using the rules for differentiation, what does this second derivative of the given product become?
Hello, and welcome to FMH! Let's look at: [MATH]\frac{d^2}{dx^2}(I(x)y(x))[/MATH] Using the rules for differentiation, what does this second derivative of the given product become?
D Deleted member 4993 Guest Apr 6, 2020 #3 pav99 said: Don't really know where to start with a). I would appreciate any help. View attachment 17707 Click to expand... It basically tells you the steps" d/dx [I * y] = I * y' + y * I' [Math] \to [/Math] d2/dx2[I * y] = d/dx[I * y' + y * I'] [Math] \to [/Math] ?
pav99 said: Don't really know where to start with a). I would appreciate any help. View attachment 17707 Click to expand... It basically tells you the steps" d/dx [I * y] = I * y' + y * I' [Math] \to [/Math] d2/dx2[I * y] = d/dx[I * y' + y * I'] [Math] \to [/Math] ?