“…We also refer some references here, wherein researchers have studied approximation properties of classical linear positive operators (cf. [7], [10], [11], [12], [13], [14], [17], [18], [19], [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35]). Throughout the paper, let C 2 [0, ∞) denote the class of all continuous functions on positive real axis and f (x) = O(1 + x 2 ).…”