MathDB
Turkey NMO 2010 1st Round - P35 (Algebra)

Source:

July 27, 2012

Problem Statement

Which one below is not less than x3+y5x^3+y^5 for all reals x,yx,y such that 0<x<10<x<1 and 0<y<10<y<1?
<spanclass=′latex−bold′>(A)</span> x2y<spanclass=′latex−bold′>(B)</span> x2y2<spanclass=′latex−bold′>(C)</span> x2y3<spanclass=′latex−bold′>(D)</span> x3y<spanclass=′latex−bold′>(E)</span> xy4 <span class='latex-bold'>(A)</span>\ x^2y \qquad<span class='latex-bold'>(B)</span>\ x^2y^2 \qquad<span class='latex-bold'>(C)</span>\ x^2y^3 \qquad<span class='latex-bold'>(D)</span>\ x^3y \qquad<span class='latex-bold'>(E)</span>\ xy^4
Back to ProblemsView on AoPS