• experimentX
How to show that the the sequence $$\{ a_n \}$$ is a monotonically decreasing sequence. $a_n = { { \left (\frac { \sqrt [ n ]{ a } +\sqrt [ n ]{ b } +\sqrt [ n ]{ c } +\sqrt [ n ]{ d } }{ 4 } \right ) }^{ n } }$ It might not be monotonically decreasing sequence. I might be wrong in my assumption.
Mathematics

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