{"id":"site-4935/zad/7220","paper_id":"site-4935","number":"7220","points":null,"ptype":"open","subject":"matematyka","category":"zbiory","year":0,"month":null,"level":"rozszerzona","text":"Dla każdego α suma sinα+sin3α jest równa A. sin4α B. 2sin4α C. 2sin2αcosα D. 2sinαcos2α","answer":null,"answer_text":null,"solution":null,"image":"img/site/4935/zad-7220.svg","solution_image":"img/site/4935/rozw-7220.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 (rozszerzona)","subject_label":"Matematyka","category_label":"Zbiory zadań","text_html":"<p>Dla każdego α suma sinα+sin3α jest równa A. sin4α B. 2sin4α C. 2sin2αcosα D. 2sinαcos2α</p>","solutions":[{"source":"site","label":"matematykaszkolna.pl","kind":"image","image":"/img/site/4935/rozw-7220.svg"}]}