“…However in our case, if the function 0 has the property 0 ( ) ≠ 0 for some point ∈ [ 0 , 1 ], then it requires that ( , 0) ≠ 0. For example, if the function ( , ) is taken as ( , ) = 1 + 2 , then it becomes ( , 0) = 1 ≠ 0 and the condition of Qarawani's [25] becomes invalid.…”