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Let x and y be nonnegative real numbers. If xy = \frac{2}{5}, then find the minimum value of 6x + \frac{3}{5y}.

 Feb 14, 2024
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xy  = 2/5

y = 2 / (5x)

 

6x + 3 / (2 / (5x) )  = 

 

6x +  (15/2)x  = 

 

(27/2) x

 

This has no min

 

 

cool cool cool

 Feb 14, 2024

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