Комплексные числа

Комплексные числа

10th Grade

8 Qs

quiz-placeholder

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Комплексные числа

Комплексные числа

Assessment

Quiz

Mathematics

10th Grade

Medium

Created by

Инна Трандафил

Used 6+ times

FREE Resource

8 questions

Show all answers

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

 z\left|z\right|  , если z= -  11\sqrt{11}  +5i

6

11

5

 11\sqrt{11}  

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

 (5+2i)2\left(5+2i\right)^2  

25 - 4i

21-3i

25+8i

21+20i

8.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Вычислите

 11+i+11i\frac{1}{1+i}+\frac{1}{1-i}  

1

2

3

4