NCERT Exercise 2.3 Q2 - Relations and Functions

Question: Find the domain and range of (i) f(x)=-|x| and (ii) f(x)=sqrt(9-x^2).

Answer: (i) domain=R, range=(-infinity,0]. (ii) domain=[-3,3], range=[0,3].

Full step-by-step NCERT solution with diagrams on Something by Zero.

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