[" Which of the following function is su...

[" Which of the following function is surjective but not injective "],[[" (A) "f:R rarr Rf(x)=x^(4)+2x^(3)-x^(2)+1," (B) "f:R rarr Rf(x)=x^(3)+x],[" (C) "f:R rarr R^(+)f(x)=sqrt(1+x^(2))," (D) "f:R rarr Rf(x)=x^(3)+2x]]

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[" Which of the following function is surjective but not injective "],[[" (A) "f:R rarr Rf(x)=x^(4)+2x^(3)-x^(2)+1," (B) "f:R rarr Rf(x)=x^(3)+x],[" (C) "f:R rarr R^(+)f(x)=sqrt(1+x^(2))," (D) "f:R rarr Rf(x)=x^(3)+2x]]

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