ABCD is a parallelogram and A1 and B1 are the mid-points of the sides BC and CD respectively. If →AA1+→AB1=λ →AC, then ′λ′ is equal to

ABCD is a parallelogram and A1 and B1 are the mid-points of the sides

1.	ABCD is a parallelogram and A1 and B1 are the mid-points of the sides BC and CD respectively. If →AA1+→AB1=λ →AC, then ′λ′ is equal to
Answer» ABCD is a parallelogram and $A_{1}$ and $B_{1}$ are the mid-points of the sides BC and CD respectively. $I f \to A A_{1} + \to A B_{1} = λ \to A C,$ then $^{'} λ^{'}$ is equal to