
Комплексные числа
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Mathematics
11th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выделите действительную часть в комплексном выражении
z=17+20i
20
17
20i
37
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите сумму действительного числа и мнимого в выражении
z=2+7i
2
7
9
10
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите сумму двух комплексных чисел:
z1=2+3i и z2=1+4i
1+7i
3+7i
1−i
3−7i
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вычислите модуль комплексного числа
z=3+4i
3
4
5
корень из 7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите произведение комплексных чисел:
(1+2i)⋅(3−i)
5+i
3−2i
5+5i
7+i
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите сопряжённое число к z=6−5i
6+5i
−6−5i
−6+5i
6−5i
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Чему равно квадрат комплексного числа i?
1
-1
0
i
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