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MY NOTES
SCALCET9 16.3.007.
Determine whether or not F is a conservative vector field. If It is, find a function 
f such that F = Vf. (If the vector field is not conservative, enter DNE.)


F(x,y)=◻(x,y)=(ye^(x)+sin(y))1+(e^(x)+x cos(y))j

44. [0/1 [0 / 1 Points]\newlineDETAILS\newlineMY NOTES\newlineSCALCET99 1616.33.007007.\newlineDetermine whether or not F is a conservative vector field. If It is, find a function f f such that F = Vf. (If the vector field is not conservative, enter DNE.)\newlineF(x,y)=(x,y)=(yex+sin(y))1+(ex+xcos(y))j F(x, y)=\square(x, y)=\left(y e^{x}+\sin (y)\right) 1+\left(e^{x}+x \cos (y)\right) j

Full solution

Q. 44. [0/1 [0 / 1 Points]\newlineDETAILS\newlineMY NOTES\newlineSCALCET99 1616.33.007007.\newlineDetermine whether or not F is a conservative vector field. If It is, find a function f f such that F = Vf. (If the vector field is not conservative, enter DNE.)\newlineF(x,y)=(x,y)=(yex+sin(y))1+(ex+xcos(y))j F(x, y)=\square(x, y)=\left(y e^{x}+\sin (y)\right) 1+\left(e^{x}+x \cos (y)\right) j
  1. Identify components of F(x,y)F(x, y): Identify the components of the vector field F(x,y)F(x, y) given by F(x,y)=(yex+sin(y))i+(ex+xcos(y))jF(x, y) = (y e^x + \sin(y))\mathbf{i} + (e^x + x \cos(y))\mathbf{j}.
  2. Check for conservativity: Check if FF is conservative by verifying if the partial derivative of MM with respect to yy equals the partial derivative of NN with respect to xx, where M=yex+sin(y)M = y e^x + \sin(y) and N=ex+xcos(y)N = e^x + x \cos(y).
  3. Calculate partial derivatives: Calculate M/y=ex+cos(y)\partial M/\partial y = e^x + \cos(y) and N/x=exsin(y)\partial N/\partial x = e^x - \sin(y).

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