Question

prove that x>0 then x+1/x >= 2​

Answer 1

Answer:

take x = 1 :— 1 + (1/1) = 2 >=2 take x = 2 :— 2 + (1/2) = 2.5 >= 2 and so on. anything bigger than ... x^2 + 1 >2x and then take 2x to left side. x^2 - 2x + 1> 0 and hence can be ...