1.

Let f be a function defined by f(x)=(x-5)/(x-3), x != 3, 2 f'(x) denote the composition of f with itself takenk time i.e. f^(3)(x)=f(f(f(x))) then

Answer»

`f^(-2012)(2009) = 2009`
`f^(2009) (2010)=(2005)/(2007)`
`f^(-2009)(2009)=(1002)/(1003)`
`f^(2012)(2012)=2012`

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