If  \(\vec a,\,\vec b, \,\vec c \) are the position vectors of the vertices of an equilateral triangle whose orthocentre is at the origin,  then write the value of \(\vec a+\vec b+\vec c\).

“इस प्रकार का निंदक बड़ा दुःखी होता है।”

A die is thrown. What is the chance of getting a face with dots as multiple of 2.