Trigonometry, a work in the collection of the Gelfand School Program, is the result of a collaboration between two experienced pre-college teachers, one of whom, I.M. Gelfand, is considered to be amon
BEN WAKEFIELD is the most bullied boy at Scarr Hill High; MR LI is the most accident prone person in Hong Kong. When their paths cross it is the beginning of Ben’s journey into another world - a paral
This significantly expanded Second Edition features400 morebeautiful, challenging, and instructive problems from algebra, geometry, trigonometry, combinatorics, and number theory from num
