Numere complexe
Rezolvăm exerciții cu numere complexe, conform programei de clasa a X-a si programei de Bacalaureat
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Question 1 of 10
1. Question
1 points4. Partea reală a numărului z=2+i/1-i este:Correct
Incorrect
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Question 2 of 10
2. Question
1 points6. Fie z1=1+i si z2=1-i. Atunci 1/z1+1/z2 este egal cu:Correct
Incorrect
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Question 3 of 10
3. Question
1 points9. Rădăcinile complexe ale ecuației x^2+4=0 sunt:Correct
Incorrect
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Question 4 of 10
4. Question
1 points1. Valorile numerelor a,b € R, pentru care are loc egalitatea 2a-3i=-4+(5-2b)i sunt:Correct
Incorrect
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Question 5 of 10
5. Question
1 points3. Modulul numărului z=3-4i este:Correct
Incorrect
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Question 6 of 10
6. Question
1 points10. Modulul numărului z=1+i/1-i este:Correct
Incorrect
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Question 7 of 10
7. Question
1 points7. Numărul (1+i)^8 este egal cu:Correct
Incorrect
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Question 8 of 10
8. Question
1 points8. Valoarea lui x € R pentru care numarul z=radical din 7+(3x+6)i este:Correct
Incorrect
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Question 9 of 10
9. Question
1 points5. Valoarea numărului z=i^8+i^9+i^10+i^11+i^12 este:Correct
Incorrect
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Question 10 of 10
10. Question
1 points2. Valoarea lui x € R pentru care numarul z=(5x-10)+7i este pur imaginar este:Correct
Incorrect
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Examples of questions from "Numere complexe"
- 6. Fie z1=1+i si z2=1-i. Atunci 1/z1+1/z2 este egal cu:
- 8. Valoarea lui x € R pentru care numarul z=radical din 7+(3x+6)i este:
- 10. Modulul numărului z=1+i/1-i este:
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