The Green Book of Mathematical Problems - Free PDF


The Green Book of Mathematical Problems - Free PDF 
by Kenneth Hardy (Author),‎ Kenneth S. Williams (Author)
Rich selection of 100 practice problems — with hints and solutions — for students preparing for the William Lowell Putnam and other undergraduate-level mathematical competitions. Features real numbers, differential equations, integrals, polynomials, sets, other topics. Hours of stimulating challenge for math buffs at varying degrees of proficiency. References.

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