{"type":"rich","version":"1.0","description":"치환적분과 부분적분의 핵심 단계","title":"적분 핵심 단계 완성","width":720,"html":"<iframe src=\"https://arcade.padlet.com/embed/aBKQOoqljZ\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","height":480,"provider_name":"Padlet Arcade","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1786228070420&hashid=aBKQOoqljZ","provider_url":"https://arcade.padlet.com"}