{"type":"rich","version":"1.0","title":"三角関数の公式","description":"三角関数の重要公式のフラッシュカード。加法定理sin(a+b)、加法定理cos(a+b)、二倍角の公式sin2a、二倍角の公式cos2a、半角の公式、合成公式asin x+bcos x、三角関数の相互関係sin2+cos2=1の8枚。表に公式名、裏に公式を表示する。","author_name":"Padlet Arcade","thumbnail_url":"https://arcade.padlet.com/open-graph/social-preview-image.png?timestamp=1780559787261&hashid=exjLnNMXKO","html":"<iframe src=\"https://arcade.padlet.com/embed/exjLnNMXKO\" width=\"720\" height=\"480\" frameborder=\"0\" allowfullscreen></iframe>","width":720,"height":480,"provider_name":"Padlet Arcade","provider_url":"https://arcade.padlet.com"}