Numere complexe

Numere complexe

11th Grade

8 Qs

quiz-placeholder

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Numere complexe

Numere complexe

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

Created by

Valeria Crudu

Used 5+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Totalitatea numerelor complexe constituie mulțimea numerelor complexe și se notează cu...

C

Q

R

K

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Numărul z=a+biz=a+bi  este scris în formă...

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Partea reală a numărului z=i9z=-i-9  este 

-i

-1

9

-9

4.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Selectați numerele la care  Im z=3Im\ z=-3  

 z=53iz=5-3i  

 z=7+3iz=-7+3i  

 z=3i+5z=-3i+5  

 z=3i10z=3i-10  

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Numărul complex pentru care partea reală este 0 se numește ...


6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Conjugata numărului z=i1z=-i-1  este...


 i+1-i+1  

 i1i-1  

 i+1i+1  

 2i-2i  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Calculați (i+4)+5i\left(-i+4\right)+5i  .

 6i+46i+4  

 5i+35i+3  

 4+4i4+4i  

8.

FILL IN THE BLANK QUESTION

45 sec • 1 pt

Calculați 3(25i)3\left(2-5i\right)  .