Question

2) Range of f(x)=xis .....
(a) R
(b) R*
(c)R
(d) RU[0)​

Answer 1

Answer:

The range of f(x) is the set of values that it can take for some value of x . Given any real number y , let x=y . Then f(x)=x=y . So the range of f(x) is the whole of R too.

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