Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Relations and Functions
The function f : R → R defined by
f(x) = 2x + 2|x|, is
1
one-one and onto
2
many-one and onto
3
one-one and into
4
More than one of the above
5
None of the above