If R denotes the set of all real numbers, then the function f : defined f(x) = is :
one-one only
onto only
both one-one and onto
neither one-one nor onto
is equal to
a
2a
3a
0
C.
3a
We know that, any vector a can be uniquely expressed in terms of three non-coplanar vectors as multiply scalarly in succession by , we get