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let f:(e,infinite)-R be defined by f(x)=logloglogx, then(1) f is one-one, but not onto(2) f is onto but not one-one(3) f is bijective(4) f^-1(x) exists

Answer» let f:(e,infinite)-R be defined by f(x)=logloglogx, then
(1) f is one-one, but not onto
(2) f is onto but not one-one
(3) f is bijective
(4) f^-1(x) exists


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