Find the least value of 
where a>0, b>0 and 
>0.
Since 
>0, a>0,b>0. By AM>=GM property
So minimum value of 
(
) is 
which occurs when 
i.e. 
1
Find the least value of where a>0, b>0 and >0.
Since >0, a>0,b>0. By AM>=GM property
So minimum value of () is which occurs when
i.e.