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TareaN°3/3°Sec

Authored by Luis Guerrero

Mathematics

9th Grade

Used 2+ times

TareaN°3/3°Sec
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Halle la ecuación de segundo grado si sus raíces son: -1 y 5

x2+4x5=0x^2+4x-5=0

x2+4x+5=0x^2+4x+5=0

x24x5=0x^2-4x-5=0

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Una de las propiedades de las raíces es la suma que corresponde a:

x1+x2=bax_1+x_2=\frac{b}{a}

x1+x2=bax_1+x_2=-\frac{b}{a}

x1+x2=cax_1+x_2=\frac{c}{a}

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Halle la ecuación de segundo grado si sus raíces son: - 4 y - 2.

x26x+8=0x^2-6x+8=0

x2+6x+8=0x^2+6x+8=0

x26x8=0x^2-6x-8=0

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Indique las raíces de la ecuación:

 x26x40=0x^2-6x-40=0  

 x1=10  ;   x2 =4x_1=10\ \ ;\ \ \ x_2\ =-4  

 x1=10  ;   x2 =4x_1=-10\ \ ;\ \ \ x_2\ =4  

 x1=10  ;   x2 =4x_1=-10\ \ ;\ \ \ x_2\ =-4  

 x1=10  ;   x2 =4x_1=10\ \ ;\ \ \ x_2\ =4  

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

La unidad imaginaria es?

1\sqrt{-1}

1\sqrt{1}

i

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Es un numero real b acompañado de la unidad imaginaria i

números complejos

números imaginarios

números reales

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

i3 es equivalente a

1

0

i

-i

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