Most Awaited Question

Algebra Level 4

aa and bb are real numbers such that a2+b2=1,a^{2} + b^{2} = 1, and always satisfy

11+a2+11+b2+11+ab≥x1+(a+b)2z. \frac{1}{1 + a^{2}}+ \frac{1}{1 + b^{2}} + \frac{1}{1 + ab} \geq \frac{x}{1 + \frac{(a+b)^{2}}{z}}.

Find ⌊xz⌋\left\lfloor \frac{x}{z} \right\rfloor when the value of the LHS of the above inequality is the least.


Details and Assumptions:

  • xx and zz are positive integers.
  • ⌊⋅⌋\lfloor \cdot \rfloor denotes the greatest integer function.
U Z by U Z
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