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Romanian National Olympiad 2018 - Grade 11 - problem 2
Romanian National Olympiad 2018 - Grade 11 - problem 2
Source: Romania NMO - 2018
April 7, 2018
calculus
inequalities
Problem Statement
Let
x
>
0.
x>0.
x
>
0.
Prove that
2
−
x
+
2
−
1
/
x
≤
1.
2^{-x}+2^{-1/x} \leq 1.
2
−
x
+
2
−
1/
x
≤
1.
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