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Maths-

General

Easy

Question

If point O is the centre of a circle circumscribed about a triangle ABC. Then $Error converting from MathML to accessible text.$

$(\bar{O A} + \bar{O B} + \bar{O C}) s i n 2 A$
$(\bar{O A} + \bar{O B} + \bar{O C}) c o s 2 A$
$\bar{0}$
$(\bar{O A} + \bar{O B} + \bar{O C}) t a n 2 A$

The correct answer is: $stack 0 with bar on top$

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