Math Problem Statement
Qual é o valor da coordenada de \[y\] do ponto \[A\]? Escolha 1 resposta: Escolha 1 resposta: (Escolha A) \[\operatorname{sen}\left(\dfrac{\pi}{4}\right)\] A \[\operatorname{sen}\left(\dfrac{\pi}{4}\right)\] (Escolha B) \[\cos\left(\dfrac{\pi}{4}\right)\] B \[\cos\left(\dfrac{\pi}{4}\right)\] (Opção C, verificada) \[\operatorname{sen}\left(\dfrac{3\pi}{4}\right)\] C \[\operatorname{sen}\left(\dfrac{3\pi}{4}\right)\] (Escolha D) \[\cos\left(\dfrac{3\pi}{4}\right)\] D \[\cos\left(\dfrac{3\pi}{4}\right)\] (Escolha E) \[\operatorname{sen}\left(\dfrac{7\pi}{4}\right)\] E \[\operatorname{sen}\left(\dfrac{7\pi}{4}\right)\] (Escolha F) \[\cos\left(\dfrac{7\pi}{4}\right)\] F \[\cos\left(\dfrac{7\pi}{4}\right)\]
Solution
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Math Problem Analysis
Mathematical Concepts
Trigonometry
Unit Circle
Sine Function
Cosine Function
Formulas
Coordinates on the unit circle: (cos(theta), sin(theta))
Theorems
-
Suitable Grade Level
High School
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