1-2*{left(7/25right)}^2 eching

$$1-2 \times { \left( \frac{ 7 }{ 25 } \right) }^{ 2 }$$

Baholash

$$\frac{527}{625}=0,8432$$

Yechim qadamlari

2 daraja ko‘rsatkichini \frac{7}{25} ga hisoblang va \frac{49}{625} ni qiymatni oling.

$$1-2\times \frac{49}{625}$$

2\times \frac{49}{625} ni yagona kasrga aylantiring.

$$1-\frac{2\times 49}{625}$$

98 hosil qilish uchun 2 va 49 ni ko'paytirish.

$$1-\frac{98}{625}$$

1 ni \frac{625}{625} kasrga o‘giring.

$$\frac{625}{625}-\frac{98}{625}$$

\frac{625}{625} va \frac{98}{625} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{625-98}{625}$$

527 olish uchun 625 dan 98 ni ayirish.

$$\frac{527}{625}$$

Omil

$$\frac{17 \cdot 31}{5 ^ {4}} = 0,8432$$