{"id":"site-4403/zad/4429","paper_id":"site-4403","number":"4429","points":null,"ptype":"open","subject":"matematyka","category":"zbiory","year":2015,"month":null,"level":"podstawowa","text":"Jeżeli 0 stopni < alfa < 90 stopni oraz tg alfa = 2 * sin alfa to A. cos alfa = 1/2, B. cos alfa = pierwiastek z 2 / 2, C. cos alfa = pierwiastek z 3 / 2, D. cos alfa = 1.","answer":null,"answer_text":null,"solution":null,"image":"img/site/4403/zad-4429.svg","solution_image":"img/site/4403/rozw-4429.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 · 2015 (podstawowa)","subject_label":"Matematyka","category_label":"Zbiory zadań","text_html":"<p>Jeżeli 0 stopni &lt; alfa &lt; 90 stopni oraz tg alfa = 2 * sin alfa to A. cos alfa = 1/2, B. cos alfa = pierwiastek z 2 / 2, C. cos alfa = pierwiastek z 3 / 2, D. cos alfa = 1.</p>","solutions":[{"source":"site","label":"matematykaszkolna.pl","kind":"image","image":"/img/site/4403/rozw-4429.svg"}]}