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삼각함수의 그래프
삼각함수의 그래프를 관찰해보세요.
1. [math]sin[theta] [/math]의 값의 변화를 그래프로 그려보세요.
2. 단위원과 삼각함수의 그래프의 관계를 설명해보세요.
3. [math]sin theta [/math]와 [math]cos theta [/math] 의 그래프 사이의 관계를 설명해보세요.