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Let x,y,z, and t be positive real numbers such that x+y+z+t=1. What is the minimum value of 1/x+1/y+4/z+16/t?

Let x,y,z, and t be positive real numbers such that x+y+z+t=1. What is the minimum value of

1/x+1/y+4/z+16/t?

Grade:11

2 Answers

jitender lakhanpal
62 Points
9 years ago

2126_36248_MIN MAX.JPG

Chandran Ramaswamy
14 Points
9 years ago

Not quite clear about the last 3 steps, please explain.

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