
Senoide e cossenoide
Authored by Arnoldo Neto
Mathematics
11th Grade
Used 5+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
As funções seno e cosseno são representadas, respectivamente, por duas curvas chamadas de senoide e cossenoide. De acordo com o gráfico a seguir, os valores de x que satisfazem a desigualdade sen x > cos x são:
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se você dividir o círculo em 8 partes iguais, Quantos graus teriam em cada parte?
45°
90°
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
(PUC-PR) Observe o gráfico da função trigonométrica abaixo e assinale a alternativa correta.
A sua amplitude é 2.
Gráfico acima representa a função f(x) = 2 + cosx.
Gráfico acima representa a função f(x) = 1 + cosx.
A imagem da função é [0; 2π].
Gráfico acima representa a função f(x) = 2 + senx.
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A figura a seguir ilustra um arco BC de comprimento em radianos, então a medida em graus do ângulo central BÔC, é de:
18,75°.
37,5°.
75°.
150°.
160°.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se f(x) = a + b.sen x tem como gráfico.
a = -2 e b = 1.
a = -1 e b = 2.
a = 1 e b = -1.
a = 1 e b = -2.
a = 2 e b = -1.
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A figura abaixo mostra parte do gráfico da função:
y = sen (2x).
y = 2 sen (x/2).
y = (1/2) sen (2x).
y = 2 sen (x).
y = 2 sen (2x).
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