relations and functions

Asked by raghs321 | 25th Feb, 2010, 02:36: AM

Expert Answer:

f:R→R  such that

f(x) =x if x is positive or 0

=-x if x is negative

So f(x) = absolute value function

It is not one to one as f(1)=1 and f(-1)=1

and range is positive real numbers

Answered by  | 25th Feb, 2010, 10:19: AM

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