Question

if a>0 and a≠ 1 prove that a²+ 1/a² > a+ 1/a​

Answer 1

Answer:

$.$

Step-by-step explanation:

A2 -4a =1 dividing by a

a-4=1/a

a-1/a=4

on squaring both sides

a2-2+1/a2=16

a2+1/a2=16+2=18