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tema15 derivadas parciales

Authored by J. DEIVID

Mathematics

University

Used 2+ times

tema15 derivadas parciales
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x,y)=2x5y+3f\left(x,y\right)=2x-5y+3  

 dx=2 dx=2\   
 dy=5dy=5  

 dx=2 dx=-2\   
 dy=5dy=-5  

 dx=5dx=5 
 dy=2 dy=2\   

 dx=5dx=-5  
 dy=2 dy=-2\   

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 z=2y2xz=2y^2\sqrt{x}  

 dx= xydx=\ \frac{x^{ }}{\sqrt{y}}  
 dy=xy​dy=\sqrt{x}y  

 dx=4xydx=4\sqrt{x}y  
 dy= x2xdy=\ \frac{x^2}{\sqrt{x}}  

 dx= x2xdx=\ \frac{x^2}{\sqrt{x}} 

 dy=4xydy=4\sqrt{x}y  

 dx= xxdx=\ \frac{x^{ }}{\sqrt{x}}  
 dy=xydy=\sqrt{x}y  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x,y)=x2y3f\left(x,y\right)=x^2y^3  

 dx=2y3x ; dy=3x2y2dx=2y^3x\ ;\ dy=3x^2y^2  

 dx=2y2x ; dy=3x2y3dx=2y^2x\ ;\ dy=3x^2y^3  

 dx=2y3x ; dy=3xydx=2y^3x\ ;\ dy=3x^{ }y^{ }  

 dx=2y3 ; dy=3x2dx=2y^3\ ;\ dy=3x^2  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 z=ln xyz=\ln\ \frac{x}{y}  

 dx=x1 ; dy=y1dx=\frac{x}{1}\ ;\ dy=-\frac{y}{1}  

 dx=x ; dy=ydx=x\ ;\ dy=y  

 dx=1x ; dy=1ydx=\frac{1}{x}\ ;\ dy=-\frac{1}{y}  

 dx=1x ; dy=1ydx=\frac{1}{x}\ ;\ dy=\frac{1}{y}  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 z=cos xvz=\cos\ xv  

 dx=y sen xy ; dy=x sen xydx=-y\ sen\ xy\ ;\ dy=-x\ sen\ xy  

 dx=y cos xy ; dy=x cos xydx=-y\ \cos\ xy\ ;\ dy=-x\ \cos\ xy  

 dx=y cos xy ; dy=x sen xydx=-y\ \cos\ xy\ ;\ dy=-x\ sen\ xy  

 dx=y sen xy ; dy=x cos xydx=-y\ sen\ xy\ ;\ dy=-x\ \cos\ xy  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 z=3xy2z=3xy^2  

 xy=6yxy=6y  

 xy=6yxy=-6y  

 xy=6xy=6  

 xy=yxy=y  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 z=2xey3yexz=2xe^y-3ye^{-x}  

 ex+3eye^{-x}+3e^y  

 2ex+3ey2e^x+3e^{-y}  

 2ex+ey2e^x+e^{-y}  

 2ex3ey2e^x-3e^{-y}  

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