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FUNCIONES COMPUESTAS E INVERSAS 2BGU E

Authored by Jessica Ramos

Mathematics

11th Grade

Used 15+ times

FUNCIONES COMPUESTAS E INVERSAS 2BGU E
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7 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Dadas las funciones

 f(x)=x2   y     g(x)=x+2f\left(x\right)=x^2\ \ \ y\ \ \ \ \ g\left(x\right)=x+2  , hallar: (fog)(x)    y   (fog) (3)\left(fog\right)\left(x\right)\ \ \ \ y\ \ \ \left(fog\right)\ \left(3\right)  

 (fog)(x)=x2+2    y   (fog) (3)=11\left(fog\right)\left(x\right)=x^2+2\ \ \ \ y\ \ \ \left(fog\right)\ \left(3\right)=11  

 (fog)(x)=(x+2)2    y   (fog) (3)=25\left(fog\right)\left(x\right)=\left(x+2\right)^2\ \ \ \ y\ \ \ \left(fog\right)\ \left(3\right)=25  

 (fog)(x)=x+2    y   (fog) (3)=5\left(fog\right)\left(x\right)=x+2\ \ \ \ y\ \ \ \left(fog\right)\ \left(3\right)=5  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Dadas las funciones   , hallar  (fog)(x)\left(fog\right)\left(x\right)  :


 5x2+55x^2+5  

 25x2+125x^2+1  

 5x2+15x^2+1  

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Dadas las funciones  , hallar (gof)(x)\left(gof\right)\left(x\right)  :

 5x2+55x^2+5  

 25x2+525x^2+5  

 25x2+125x^2+1  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Halle la inversa de la función:  g(x)=x32g\left(x\right)=x^3-2  


 f1(x)=x+2f^{-1}\left(x\right)=x+2  

 f1(x)= 3x+2f^{-1}\left(x\right)=\ ^3\sqrt{x+2}  

 f1(x)=(x+2)3f^{-1}\left(x\right)=\left(x+2\right)^3  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Halle la inversa de la función  f(x)=x3+x, x3f\left(x\right)=\frac{x}{3+x},\ x\ne-3  


 f1(x)=3x1+xf^{-1}\left(x\right)=\frac{3x}{1+x}  

 f1(x)=1x3xf^{-1}\left(x\right)=\frac{1-x}{3x}  

 f1(x)=3x1xf^{-1}\left(x\right)=\frac{3x}{1-x}  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 Realice la comprobación de la función inversa (fof1)(x)=x\left(fof^{-1}\right)\left(x\right)=x  y responda con (V) o (F), según corresponda:

 f1(x)=x+3f^{-1}\left(x\right)=x+3  es la inversa de  f(x)=3x1f\left(x\right)=3x-1  .


V

F

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Realice la comprobación de la función inversa:(g o g1)(x)=x\left(g\ o\ g^{-1}\right)\left(x\right)=x y responda con (V) o (F) , según corresponda:

 g1(x)=1x+2g^{-1}\left(x\right)=\frac{1}{x+2}  es la inversa de  g(x)=1x2g\left(x\right)=\frac{1}{x}-2  


V

F

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