
ΕΙΣΑΓΩΓΗ στους ΜΙΓΑΔΙΚΟΥΣ
Authored by giannis xantzis
Mathematics
10th Grade
Used 2+ times

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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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