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ΕΙΣΑΓΩΓΗ στους ΜΙΓΑΔΙΚΟΥΣ

Authored by giannis xantzis

Mathematics

10th Grade

Used 2+ times

ΕΙΣΑΓΩΓΗ στους ΜΙΓΑΔΙΚΟΥΣ
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Πόσο κάνει το (2i)2 ;

4

  • - 4

2i2

Answer explanation

(2i)2 = 22 . i2 = 4 . (-1) = - 4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Με τι ισούται η δύναμη i46 ;

1

-1

i

  • - i

Answer explanation

διαιρούμε το 46 : 4 και βρίσκουμε

πηλίκο 11 και υπόλοιπο 2.

Δηλαδή 46 = 4 . 11 + 2

Οπότε i46 = i2 = - 1.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Με τι ισούται το i32 + i35 ;

0

2

1 + i

1 - i

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Αν z = 3 - 5i , τότε το Im(z) = . . .

Im(z) = 3

Im(z) = - 5i

Im(z) = 5i

Im(z) = - 5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Im(5 + 7i) = . . .

5

7

7i

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Αν z = 2i - 5 , τότε ο συζυγής του είναι . . .

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Αν οι μιγαδικοί αριθμοί z = x2 - 2i και w = 4 + xi είναι ΊΣΟΙ,

τότε το x = ;

x = 2

x = - 2

x = 4

x = - 4

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