Question

If $A(1,2,-1)$ and $B(-1,0,1)$ are given, then the co-ordinates of $P$ which divides $AB$ externally in the ratio $1:2$, are

• A. $\frac{1}{3}(1,4,-1)$
• B. $(3,4,-3)$
• C. $\frac{1}{3}(3,4,-3)$
• D. $Noneofthese$

Answer 1

The correct option is B $(3,4,-3)$