Latest Hexaware Aptitude Question SOLUTION: f(x) = 1/(1-x) find(f(f(f(x)))

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f(x) = 1/(1-x) find(f(f(f(x)))

Asked In Hexaware (13 years ago)

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Balakrishnan M  (13 years ago)

f(x) = 1/(1-x)
==>f(f(x)) = f(1/(1-x))
= 1/(1-(1/(1-x)))
= 1/((1-x-1)/(1-x))
= 1/(-x/(1-x))
= x-1/x
==> (f(f(f(x)))=f(x-1/x)
= 1/(1-(x-1/x))
= 1/((x-x+1)/x)
= 1/(1/x)
= x

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