[tex]\((a+b)(\frac{1}{a}+\frac{1}{b}) \ \textgreater \ or = 4\)
\\
1+a/b+b/a + 1 \geq 4
[/tex][tex]\((a+b)(\frac{1}{a}+\frac{1}{b}) \ \textgreater \ or = 4\)
[/tex]
distributedÂ
choose 1 as your lowest positive integer
plug 1 into a and b
1 + 1 + 1 + 1[tex] \geq 4[/tex]
