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f;R-R given by f(x)=x+sqrt x^2 is injective or surjective?

f;R-R given by f(x)=x+sqrt x^2 is injective or surjective?

Grade:12

1 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
7 years ago
f(x)=2x for x>0
f(x)=0 for x<0
seems like a surjective function

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