来自钱浚霞的问题
已知点O(0,0),A0(0,1),An(6,7),点A1,A2…,An-1(n∈N,n≥2)是线段A0An的n等分点,则|OA0+OA1+…+OAn−1+OAn|等于______.
已知点O(0,0),A0(0,1),An(6,7),点A1,A2…,An-1(n∈N,n≥2)是线段A0An的n等分点,则|
OA0+
OA1+…+
OAn−1+
OAn|等于______.


已知点O(0,0),A0(0,1),An(6,7),点A1,A2…,An-1(n∈N,n≥2)是线段A0An的n等分点,则|OA0+OA1+…+OAn−1+OAn|等于______.
已知点O(0,0),A0(0,1),An(6,7),点A1,A2…,An-1(n∈N,n≥2)是线段A0An的n等分点,则|
OA0+
OA1+…+
OAn−1+
OAn|等于______.
如图所示,
∵点A1,A2,…,An-1(n∈N,n≥2)是线段A0An的n等分点,
∴
A