1.

State which of the following statement is false ?

Answer»

If `A ={0,1,2,3},B={-3,-2,-1,0,1} andf:A RARR B ` is the mapping defined by `f(x)=x-3` for all `x in A`, then f is a one-one mapping
A constant mapping will be 0ne-one when its domain CONSTANS only one ELEMENT.
Functions f and g are defined as FOLLOWS:`f:RR-{2} rarrRR,` where `f(x)=(x^(2)-4)/(x-2) and g:RR rarrRR,` where`g(x)=x+2,` then`f=g`
`f(x)=sqrt(x^(2)+4x-1)` then `f(-2)` is not exist.

Answer :C


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