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SMO 2025 Open Round 1 Question 12

SMO · SMO 2025 Open Round 1

Question 12

If $X=\left(\dfrac{\sqrt5+\sqrt3-\sqrt2}{\sqrt2}\right)^8+\left(\dfrac{\sqrt5-\sqrt3+\sqrt2}{\sqrt2}\right)^8$, find $\lceil X\rceil$, given that $\sqrt6\approx2.4495$.