Kết quả tìm kiếm

- Ta có: v_{tb} = \frac{S_{1}+S_{2}+...+S_{n}}{T_{1}+T_{2}+...+T_{n}} - Mà: v_{tb}= \frac{v_{1}.T_{1}+v_{2}.T_{2}+...+v_{n}.T_{n}}{T_{1}+T_{2}+...+T_{n}} => v_{tb} = v_{min}.\frac{T_{1}\frac{v_{1}}{v_{min}}+.T_{2}\frac{v_{2}}{v_{min}}+...+T_{n}.\frac{v_{n}}{v_{min}}}{T_{1}+T_{2}+...+ T_{n}} -...