1.

If composite function f_(1)(f_(2)(f_(3)(...((f_(n))))n times is an increasing function and if r of f_(1) s are decreasingfunction while rest are increasing , then the maximum value of r(n-r) is

Answer»

`(n^(2)-1)/(4)` , when n is an EVEN NUMBER
`(n^(2))/(4),` when n is an ODD number
`(n^(2)-1)/(4)` , when n is an odd number
`(n^(2))/(4)` , when n is an even number

ANSWER :C::D


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