Larson Limit
113. Prove or disprove : if x and y are real numbers with y≧0
and y(y+1)≦(x+1)^2 , then y(y-1)≦x^2
114. Determine all polynomials P(x) such that P(x^2+1) = (P(x))^2 + 1
and P(0)=0
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