Question

$ln$ a triangle $ABC$, if $A=(0,0);B=(3,3\sqrt{3});C=(-3\sqrt{3},3)$ then the vector
directed along $AO$, where $O$ is the circumcentre of triangle $ABC$ is

• A. $\frac{3}{2}\left[\right(1-\sqrt{3})\overline{i}+(1+\sqrt{3}\left)\overline{j}\right]$
• B. $\sqrt{3}\overline{i}+2\overline{j}$
• C. $\overline{i}-\sqrt{3}\overline{j}$
• D. $\overline{i}+2\overline{j}$

Answer 1

Answer: (A)

$\frac{3}{2}\left[\right(1-\sqrt{3})\overline{i}+(1+\sqrt{3}\left)\overline{j}\right]$