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The set of all points of continuous of f o f o f , where f ( x ) = sgn ( x ) is

Roshan , 7 Years ago
Grade 11
anser 1 Answers
Tushar

Last Activity: 7 Years ago

Hello friend .. I am assuming that you know about sgn function.. Now we consider f°f°f as F(x).. Now if x is positive sgn returns 1 hence F(x) is 1 for x>0 .. For zero it is zero.. For x

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