¿como demuestro √ab>=(a+b)/2?

koty

Ayudaaa >= significa mayor o igual

zonic-the-hedgehog

√(ab) ≤ (a + b)/2 <-- I think like this

<=> 2√ab ≤ a + b

<=> 0 ≤ a - 2√ab + b

<=> 0 ≤ ( √a - √b )² => That is true