6.(2020•青秀区校级模拟)已知OOO是三角形ABCABCABC所在平面内一定点,动点PPP满足OP→=OA→+λ(∣AB∣⋅AB→sinC+∣AC∣⋅AC→sinB)\overrightarrow{OP}=\overrightarrow{OA}+\lambda (\frac{\vert AB\vert \centerdot \overrightarrow{AB}}{\sin C}+\frac{\vert AC\vert \centerdot \overrightarrow{AC}}{\sin B})OP=OA+λ(sinC∣AB∣⋅AB+sinB∣AC∣⋅AC),λ∈R\lambda \in Rλ∈R.则PPP点的轨迹一定通过三角形ABCABCABC的((( )))