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Worksheets

Derivadas parciales Mating-1

Total questions: 10

Worksheet time: 3hrs 30mins

Name
Class
Date
1.

Sea la función

 F(x,y)=x2y22xy2F(x,y)=x^2y^2−2xy^2  
Determine el valor de  Fx\frac{\partial F}{\partial x}  como  Fy\frac{\partial F}{\partial y}  en el punto  P(2,1)P\left(2,1\right)  

a)


 Fx=2\frac{\partial F}{\partial x}=2   Fy=0\frac{\partial F}{\partial y}=0  

b)

 \frac{\partial F}{\partial x}=2   Fy=2\frac{\partial F}{\partial y}=2  

c)

 Fx=0\frac{\partial F}{\partial x}=0   \frac{\partial F}{\partial y}=0  

d)

 Fx=0\frac{\partial F}{\partial x}=0   Fy=2\frac{\partial F}{\partial y}=2  

2.

Sea la función

 θ(r,s)=r2+s2+rs\theta(r,s)=\sqrt{r^2+s^2}+\frac{r}{s}  
Determine el valor de  θr\frac{\partial\theta}{\partial r}  como  θs\frac{\partial\theta}{\partial s}  en el punto  P(3,4)P\left(3,4\right)  

a)

 θr=2720\frac{\partial\theta}{\partial r}=\frac{27}{20}   \frac{\partial\theta}{\partial s}=\frac{49}{80} 

b)

 \frac{\partial\theta}{\partial r}=\frac{17}{20}   θs=3980\frac{\partial\theta}{\partial s}=\frac{39}{80} 

c)

 θr=1720\frac{\partial\theta}{\partial r}=\frac{17}{20}   θs=4980\frac{\partial\theta}{\partial s}=\frac{49}{80} 

d)

 θr=3120\frac{\partial\theta}{\partial r}=\frac{31}{20}   \frac{\partial\theta}{\partial s}=\frac{49}{80} 

3.

Sea la función

 F(x,y)=3x3y2x2y2+y3F\left(x,y\right)=3x^3y-2x^2y^2+y^3  
Determine el valor de  Fx\frac{\partial F}{\partial x}  como  Fy\frac{\partial F}{\partial y}  en el punto  P(1,2)P\left(1,-2\right)  

a)

 Fx=34\frac{\partial F}{\partial x}=-34   Fy=23\frac{\partial F}{\partial y}=23 

b)

 Fx=34\frac{\partial F}{\partial x}=34   Fy=23\frac{\partial F}{\partial y}=-23 

c)

 Fx=34\frac{\partial F}{\partial x}=-34   Fy=23\frac{\partial F}{\partial y}=-23 

d)

 Fx=34\frac{\partial F}{\partial x}=34   Fy=23\frac{\partial F}{\partial y}=23 

4.

Sea la función

 F(x,y)=ln(1+2x2+3y2)F\left(x,y\right)=\ln(1+2x^2+3y^2)  
Determine el valor de  Fx\frac{\partial F}{\partial x}  como  Fy\frac{\partial F}{\partial y}  en el punto  P(1,2)P\left(1,2\right)  

a)

 Fx=415\frac{\partial F}{\partial x}=-\frac{4}{15}   Fy=45\frac{\partial F}{\partial y}=-\frac{4}{5} 

b)

 Fx=415\frac{\partial F}{\partial x}=\frac{4}{15}   Fy=45\frac{\partial F}{\partial y}=-\frac{4}{5} 

c)

 Fx=415\frac{\partial F}{\partial x}=\frac{4}{15}   Fy=45\frac{\partial F}{\partial y}=\frac{4}{5} 

d)

 Fx=45\frac{\partial F}{\partial x}=\frac{4}{5}   Fy=415\frac{\partial F}{\partial y}=\frac{4}{15} 

5.

Sea la función

 F(x,y)=ex(2y2x2)F\left(x,y\right)=e^{-x}(2y^2−x^2)  
Determine el valor de  Fx\frac{\partial F}{\partial x}  como  Fy\frac{\partial F}{\partial y}  en el punto  P(1,2)P\left(1,2\right)  

a)

 Fx=2.940335529\frac{\partial F}{\partial x}=2.940335529   Fy=3.310914971\frac{\partial F}{\partial y}=-3.310914971 

b)

 Fx=3.310914971\frac{\partial F}{\partial x}=3.310914971   Fy=2.940335529\frac{\partial F}{\partial y}=2.940335529 

c)

 Fx=3.310914971\frac{\partial F}{\partial x}=-3.310914971   Fy=2.940335529\frac{\partial F}{\partial y}=2.940335529 

d)

 Fx=2.940335529\frac{\partial F}{\partial x}=2.940335529   Fy=3.310914971\frac{\partial F}{\partial y}=3.310914971 

6.

Dada la función z = f(x,y) en forma implícita, hallar ∂z/∂y.

a)
b)
c)
d)
e)

Es otra expresión.

7.

Obtener

 Fx\frac{\partial F}{\partial x}  de la función  F=(z2+1)xF=\left(z^2+1\right)^x  

a)

 (z2+1)xln(z2+1)\left(z^2+1\right)^x\ln\left(z^2+1\right)  

b)

 (z2+1)xln(z2+1)x\left(z^2+1\right)^x\ln\left(z^2+1\right)x  

c)

 (z2+1)xln(x)\left(z^2+1\right)^x\ln\left(x\right)  

d)

 x(z2+1)x1(2z)x\left(z^2+1\right)^{x-1}\left(2z\right)  

8.

Obtener

 Fy\frac{\partial F}{\partial y}  de la función  F=sen(xy)cos(xy)F=sen\left(xy\right)\cos\left(xy\right)  

a)

 xcos2(xy)x sin2(xy)x\cos^2\left(xy\right)-x\ \sin^2\left(xy\right)  

b)

 ycos2(xy)y sin2(xy)y\cos^2\left(xy\right)-y\ \sin^2\left(xy\right)  

c)

 xcos(xy)sin(xy)y sin(xy)cos(xy)x\cos\left(xy\right)\sin\left(xy\right)-y\ \sin\left(xy\right)\cos\left(xy\right)  

d)

 xcos2(xy) sin2(xy)x\cos^2\left(xy\right)-\ \sin^2\left(xy\right)  

9.

Obtener

 Fy\frac{\partial F}{\partial y}  de la función  F=ysin(xz)F=y^{\sin\left(xz\right)}  

a)

 ysin(xz)cos(xy)ln(yz)y^{\sin\left(xz\right)}\cos\left(xy\right)\ln\left(yz\right)  

b)

 sin(xz)y{sin(xz)1}\sin\left(xz\right)y^{\left\{\sin\left(xz\right)-1\right\}}  

c)

 ysin(xz)cos(xz)ln(yx)y^{\sin\left(xz\right)}\cos\left(xz\right)\ln\left(yx\right)  

d)

 ysin(xz)cos(z)y^{\sin\left(xz\right)}\cos\left(z\right)  

10.

Obtener

 Fx\frac{\partial F}{\partial x}  de la función  F=ln(x+yz)F=\ln\left(\frac{x+y}{z}\right)  

a)

 zxyz2\frac{z-x-y}{z^2}  

b)

 1z(x+y)\frac{-1}{z}\left(x+y\right)  

c)

 zx+y\frac{z}{x+y}  

d)

 1x+y\frac{1}{x+y}