[" 1:R - Adefined by "f(x)=(x)/(x^(2)+1)...

[" 1:R - Adefined by "f(x)=(x)/(x^(2)+1),AA x in R" is "],[[" 1) one-one "2" ) onto "],[" 3) bigctive "," 4) neither one one nor onto "],[" If "f:Z rarr2" is and "," then "]]

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Show that the function f:R to R defined by f(x)=(x)/(x^(2)+1) is neither one-one nor onto.

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