$y$ haqiqiy son berilgan. Xisoblang

$$\frac{1.7t(0.25) + 2t(y + 1)}{6 - t(y^2 - 1)}$$

Bu yerda: $$t(x) = \frac{\displaystyle\sum_{k=0}^{10} \frac{x ^ {2k + 1}}{(2k+1)!}}{\displaystyle\sum_{k=0}^{10} \frac{x ^ {2k}}{(2k)!}}$$

Kiruvchi ma`lumotlar: $y$ haqiqiy son ($1\le y \le 50$)

Chiquvchi ma`lumotlar: Masala yechimi $10^{-2}$ aniqlikda