Distortion Estimate and the Radius of Starlikeness of Janowski Close-to-Star Functions

Let F be the class of all analytic functions in the open unit disc D = fzj jzj < 1g of the form f (z) = z + a2z2 + a3z3 + . Letg(z) be an element of F such that g(z) satisfies the condition(zg0(z)g(z)) =1 + A(z)1 + B(z);for all z 2 D, where (z) is analytic in D and satisfying the conditions (0) = 0, j(z)j < 1, and