
Liczby zespolone i trygonometria
Authored by Tomasz Turba
Mathematics
8th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Przekształć liczbę zespoloną 3 + 4i do postaci trygonometrycznej.
3(cos(0) + i sin(0))
6(cos(0.52) + i sin(0.52))
5(cos(0.93) + i sin(0.93))
4(cos(1.57) + i sin(1.57))
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oblicz iloczyn liczb zespolonych (2 + 3i) i (1 - 2i).
-4 - i
3 + i
-2 + 5i
1 - i
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jakie są wartości sinusa i cosinusa dla kąta 45°?
sin(45°) = √2/2, cos(45°) = √2/2
sin(45°) = √3/2, cos(45°) = 1/2
sin(45°) = 0, cos(45°) = 1
sin(45°) = 1, cos(45°) = 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Przekształć liczbę zespoloną -1 + i do postaci trygonometrycznej.
√2(cos(5π/4) + i sin(5π/4))
√2(cos(7π/4) + i sin(7π/4))
√2(cos(3π/4) + i sin(3π/4))
√2(cos(π/4) + i sin(π/4))
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oblicz moduł liczby zespolonej 5 - 12i.
13
15
10
5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zastosuj wzór trygonometryczny: sin²(θ) + cos²(θ) = ?
0
sin(θ)
cos(θ)
1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mnożenie liczb zespolonych: (3 + 2i)(4 - i) = ?
12 + 7i
10 - 3i
8 + 4i
14 + 5i
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