테스트영상

<iframe width="560" height="315" src="https://www.youtube.com/embed/vwR4-E8llQg" frameborder="0" allowfullscreen></iframe>

제1화 유리함수

<iframe width="560" height="315" src="https://www.youtube.com/embed/j8MPTnT7Q5E" frameborder="0" allowfullscreen></iframe>

제2화 무리함수

<iframe width="560" height="315" src="https://www.youtube.com/embed/euK3srqXzrc" frameborder="0" allowfullscreen></iframe>

제3화 원의방정식

<iframe width="560" height="315" src="https://www.youtube.com/embed/oIYc0SgfsTk" frameborder="0" allowfullscreen></iframe>

제4화 원의 접선방정식

<iframe width="560" height="315" src="https://www.youtube.com/embed/0Qq7qK0AjTY" frameborder="0" allowfullscreen></iframe>