{"id":"site-3917/zad/3920","paper_id":"site-3917","number":"3920","points":null,"ptype":"open","subject":"matematyka","category":"zbiory","year":2013,"month":null,"level":"rozszerzona","text":"Rozwiąż równanie 2 * tg x * cos x + 1 = 2 * cos x + tg x w przedziale <0, 2pi>.","answer":null,"answer_text":null,"solution":null,"image":"img/site/3917/zad-3920.svg","solution_image":"img/site/3917/rozw-3920.svg","topics":null,"page_from":null,"source":"site","answer_source":null,"answer_text_source":null,"solution_source":null,"text_source":"site","source_label":"Matematyka · Zbiory zadań · 2013 (rozszerzona)","subject_label":"Matematyka","category_label":"Zbiory zadań","text_html":"<p>Rozwiąż równanie 2 * tg x * cos x + 1 = 2 * cos x + tg x w przedziale &lt;0, 2pi&gt;.</p>","solutions":[{"source":"site","label":"matematykaszkolna.pl","kind":"image","image":"/img/site/3917/rozw-3920.svg"}]}