グラフから正弦または余弦の方程式を書く

正弦グラフと余弦グラフの方程式の決定

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グラフから正弦と余弦の方程式を書く

How to determine the equation of a sine graph

How to determine the equation of a COSINE graph

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Find an Equation of Sine or Cosine Graph

変換を用いた正弦関数と余弦関数のグラフ化（複数の例）

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How to find Phase Shift in Sin and Cos Graphs

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Writing the Equation for a Sine or Cosine Graph

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sin 30 degree #calculator

Visualizing the derivative of sin(x)

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