Sharp Estimate of Fifth Coefficient for Ma Minda Starlike and Convex Functions

\noindent In the present investigation, we find the sharp bound of fifth coefficient of analytic normalized function $f$ satisfying $z f’(z)/f(z) \prec \varphi(z)$whencoefficientsof$\varphi$ satisfy certain conditions. For an appropriate choice of $\phi$, the already known estimates for various other subclasses of starlike functions follow directly from the obtained result.