Asked by Meg
Prove that if x and y are nonnegative real numbers, then (x+y)/2 ≥ sqrt(xy).
Use the technique of working backward from the desired conclusion. Where in the proof do we use the fact that x and y are nonnegative?
Use the technique of working backward from the desired conclusion. Where in the proof do we use the fact that x and y are nonnegative?
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