
Комплексные числа
Authored by Инна Трандафил
Mathematics
10th Grade
Used 6+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Вычислить: (3-i) + (-1+2i)
2+i
4+3i
2+3i
-3-2i
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Произведение комплексных чисел z1=4-i и z2=3-7i равно:
5-31i
5-26i
19-31i
19-26i
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Найдите частное чисел z1: z2 , если z1=1-5i и z2=1-i
2-3i
3+2i
3-2i
2+3i
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Модуль комплексного числа z=6+8i равен
8
6
14
10
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Найдите
, если z= - +5i6
11
5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Даны комплексные числа z1=1-i и z2=3+4i. Тогда 3z1-2z2 равно:
9+5i
-3+5i
-7i
-3-11i
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Вычислите
25 - 4i
21-3i
25+8i
21+20i
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