T4488.hs:11:11: warning: [-Widentities]
    Call of fromIntegral :: Int -> Int
      can probably be omitted

T4488.hs:17:11: warning: [-Widentities]
    Call of toInteger :: Integer -> Integer
      can probably be omitted

T4488.hs:23:11: warning: [-Widentities]
    Call of toRational :: Rational -> Rational
      can probably be omitted

T4488.hs:29:11: warning: [-Widentities]
    Call of realToFrac :: Float -> Float
      can probably be omitted