Numere complexe

Numere complexe

10th Grade

10 Qs

quiz-placeholder

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Numere complexe

Numere complexe

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

Created by

Florea Andreea

Used 16+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Partea reală a numărului 7i+3 este

7

-3

3

-7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Partea imaginară a numărului 2+ 3xi este

2

3

3x

-3x

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Conjugatul numărului 2xi + 3y este

-2yi - 3x

-2xi - 3y

-2xi + 3y

2xi - 3y

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Modulul numărului  (2+i 12-1-i 3)4\left(\frac{\text{2+i}\ \sqrt{12}}{\text{-1-i }\sqrt{3}}\right)^4  este 

 292^9  

 2122^{12}  

 282^8  

 272^7  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 3z =6+3i=2z 3\overline{z}\ =6+3i=\overline{2\overline{z}}\   

 z=566iz=\frac{\text{5}}{6}-6i  

 z=65+6iz=\frac{6}{5}+6i  

 z=656iz=\frac{6}{5}-6i  

 z=56+6iz=\frac{5}{6}+6i  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 z=i4+i8+i12+i16z=i^{4^{ }}+i^8+i^{12}+i^{16}  

z=4

z=-4

z=2+2i

z=-2-2i

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Reprezentarea geometrică a numărului z=3i - 2 este

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