1.

Find the resultant of three vectors \[\overrightarrow{OA},\,\overrightarrow{OB}\] and \[\overrightarrow{OC}\] shown in the following figure. Radius of the circle is R.

A. 2R
B. \[R(1+\sqrt{2})\]
C. 8 metres   
D. \[R(\sqrt{2}-1)\]
Answer» C. 8 metres   


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