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Question Number 141768 by loveineq last updated on 23/May/21

Let a, b, x, y > 0 and (a + x) (b + y) = {(a + b)}^{2} .

Prove that

\frac{a - y}{x} + \frac{b - x}{y} ⩽ \frac{b - x}{a} + \frac{a - y}{b}