Calculus 8th Edition

$G'(t)=\dfrac{\sqrt{5}}{2\sqrt{t}}-\dfrac{\sqrt{7}}{t^{2}}$
Rewrite the function $G(t)=\sqrt{5}t^{1/2}+\sqrt{7}t^{-1}$ Derivate apply power rule $G'(t)=\dfrac{\sqrt{5}}{2}t^{-1/2}-\sqrt{7}t^{-2}$ $G'(t)=\dfrac{\sqrt{5}}{2\sqrt{t}}-\dfrac{\sqrt{7}}{t^{2}}$