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Recuperación pendientes Matemáticas Aplicadas I

Authored by José Luis Pérez Sanz

Mathematics

5th Grade

Used 3+ times

Recuperación pendientes Matemáticas Aplicadas I
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19 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 131+3+32=\frac{1-\sqrt{3}}{1+\sqrt{3}}+\frac{\sqrt{3}}{\sqrt{2}}=  Efectúa y simplifica

 32+6\sqrt{3}-\sqrt{2}+\sqrt{6}  

 2233\frac{\sqrt{2}}{2}-\frac{\sqrt{3}}{3}  

 4+23+62\frac{-4+2\sqrt{3}+\sqrt{6}}{2}  

No se puede operar

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Tras operar y simplificar la operación

resulta:

x2(x+5)2\frac{x-2}{\left(x+5\right)^2}

x+5(x+5)3\frac{-x+5}{\left(x+5\right)^3}

x2+25(x+5)4\frac{-x^2+25}{\left(x+5\right)^4}

x5x+5\frac{x-5}{x+5}

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Esta operación devuelve como resultado:

3x+22x(x+1)\frac{3x+2}{2x\left(x+1\right)}

3x+2x+1\frac{3x+2}{x+1}

x12x2+2x\frac{x-1}{2x^2+2x}

3xx+1\frac{3x}{x+1}

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Sabiendo que  logA = 2,3\log_{ }A\ =\ 2,3  y  log B = 1,5\log\ B\ =\ -1,5  calcula:  log A3B100\log\ \sqrt{\frac{A^3·B}{100}}  

2,71

1,7

-0,05

1

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 log27 3=x\log_{27}\ \sqrt{3}=x  Calcula la x con la definición de logaritmo

x = 3

x = 1/6

No existe este logaritmo

x = 2/5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

El desarrollo de la expresión es:

13(2logalog5logb)\frac{1}{3}\left(2\log a-\log5-\log b\right)

3log2a3log(5b)3\log2a-3\log\left(5b\right)

13log(2a)log(5b)\frac{1}{3}\log\left(2a\right)-\log\left(5b\right)

No se puede desarrollar

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Las soluciones por el método de Gauss del sistema son:

x = 1, y = 0, z = 2

x = 0, y = 1, z = 2

x = 1, y = 0, z = -1

x = 2, y = 0, z = -1

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