Exercise. Let $R(v)=(\sqrt[\phantom{2}]{v}-\frac{2}{\sqrt[4]{v}})(3sin(v)-\frac{4}{v^5}).$ Compute:

$\frac{d}{dv}R(v)=(\sqrt[\phantom{2}]{v}-\frac{2}{\sqrt[4]{v}})*(,)+()(3sin(v)-\frac{4}{v^5})$