{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"TRIGONOMETRIC FUNCTIONS AND COMPLEX NUMBERS: In Mathematical Olympiad and Competitions (World Century Mathematical Olympiad Series)","author_name":"Desheng Yang","thumbnail_url":"https://www.ebooknetworking.net/books/193/813/big1938134869.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-1938134869.html\">TRIGONOMETRIC FUNCTIONS AND COMPLEX NUMBERS: In Mathematical Olympiad and Competitions (World Century Mathematical Olympiad Series)</a>","width":400,"height":300}