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Quiz R. 4to año. Módulo de un complejo. 05/05

Authored by Laura Valladares

Mathematics

5th Grade

Used 2+ times

Quiz R. 4to año. Módulo de un complejo. 05/05
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5 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dado z=940iz=9-40i . Calcular el mòdulo: 

 99  

 4141  

 4040  

 7317\sqrt{31}  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Calcular:  1+i2(32i)=\frac{\left|1+i\right|}{\sqrt{2}}\left(3-2i\right)=  

 32i3-2i  

 13\sqrt{13}  

 (32i)2\frac{\left(3-2i\right)}{\sqrt{2}}  

 11  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Calcular: 6+8i5(32i)=\frac{\left|-6+8i\right|}{5}\left(-\frac{3}{2}-i\right)=  

 32i-3-2i  

 100100  

 55  

 32i-\frac{3}{2}-i  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Calcular: 2i2+i=\left|\frac{2-i}{2+i}\right|=  

 735\frac{\sqrt{73}}{5}  

 15\frac{1}{5}  

 7373  

 11  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

La siguiente afirmación
 z. z=z2z.\ \overline{z}=\left|z\right|^2  es:


Verdadera.

Falsa.

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