Equazioni goniometriche
Quiz
•
Mathematics
•
10th - 12th Grade
•
Practice Problem
•
Medium

Massimo Fiorucci
Used 199+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
se l'angolo si trova:
Nel I o nel II quadrante
Nel I o nel III quadrante
Nel II o nel IV quadrante
Nel I o nel IV quadrante
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
L’equazione elementare sen(x) = a è determinata:
se e solo se -1 ≤ a ≤ 1
se e solo se a ≠ π/2 + kπ
per ogni valore di a e le sue soluzioni sono x = α + kπ.
per ogni valore di a e le sue soluzioni sono x =α + 2kπ
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
L’equazione cos x = 0:
è impossibile perché il coseno è sempre positivo.
ha come soluzioni
x = 90°+ k 270° (k∈Z).
ha come soluzioni
x = 90°+ k 360° (k∈Z)
ha come soluzioni
x = 90°+ k 180° (k∈Z).
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La soluzione dell'equazione
cos2x + sin2x = 1
è un'identità, il primo principio della goniometria
x = kπ; k∈Z
x = 2kπ, k∈Z
x = kπ/2, k∈Z
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
L’equazione :
è impossibile
è indeterminata
ha come soluzioni
ha come soluzioni
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La soluzione dell'equazione
cos2x - sin2x = 1
è un'identità, il primo principio della goniometria
x = kπ; k∈Z
x = 2kπ, k∈Z
x = kπ/2, k∈Z
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Risolvi sinx = -1 :
x = π/2 + kπ
x = π/2 + 2kπ
x = 3π/2 + 2kπ
x = π + 2kπ
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