Andreescu, Titu .

103 trigonometry problems : from the training of the USA IMO team / by Titu Andreescu and Zuming Feng. - New Delhi : Springer (India) Pvt. Ltd. , 2009 - xii, 214p :

978-81-8128-339-9


Trigonometry- Problems, exercises, etc

B5 / P9
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