1. Let the function f : W → R be defined by f(x) = x2 – x – 2 where
W = {- 1 , 0 , 2 , 5, 11} and R is the set of real numbers.
i) Find the Range of f, → R
ii) draw the diagram to represent the information labeling clearly the domain and
codomain.
2. Which of the following functions defined below is injective, surjective and
bijective.
i) f : R → R, f(x) = 2x + 1
ii) g : R → R^+, g(x) =e^x
iii) h : R → R , h(x) =x^2+2/x^2+1?
In Mathematics
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Asked by Lola on 20th February, 2021
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