A vector →r is equally inclined with the coordinate axes. If the tip of →r is in the first octant and |→r|=√3 then →r is
If →r×→b=→c×→b and →r.→a=0 where →a=2^i+3^j−^k,→b=3^i−^j+^k and →c=^i+^j+3^k, then →r is equal to