#hat i = (1,0,0)# #hat j = (0,1,0)# #hat k = (0,0,1)#
Explanation:
#hat i = (1,0,0)# #hat j = (0,1,0)# #hat k = (0,0,1)#
These are the 3 standard unit vectors in #RR^3# and they form a basis for #RR^3#, that is, they are linearly independent and span the entire vector space of #RR^3#