7.84*10^-5*4*7.84*10^-10 eching

$$7.84 \cdot 10 ^ { - 5 } \cdot 4 \cdot 7.84 \cdot 10 ^ { - 10 }$$

Baholash

$$0,0000000000002458624$$

Yechim qadamlari

Ayni asosning daraja ko‘rsatkichlarini ko‘paytirish uchun ularning darajalarini qo‘shing. -5 va -10 ni qo‘shib, -15 ni oling.

$$7,84\times 10^{-15}\times 4\times 7,84$$

-15 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{1000000000000000} ni qiymatni oling.

$$7,84\times \frac{1}{1000000000000000}\times 4\times 7,84$$

\frac{49}{6250000000000000} hosil qilish uchun 7,84 va \frac{1}{1000000000000000} ni ko'paytirish.

$$\frac{49}{6250000000000000}\times 4\times 7,84$$

\frac{49}{1562500000000000} hosil qilish uchun \frac{49}{6250000000000000} va 4 ni ko'paytirish.

$$\frac{49}{1562500000000000}\times 7,84$$

\frac{2401}{9765625000000000} hosil qilish uchun \frac{49}{1562500000000000} va 7,84 ni ko'paytirish.

$$\frac{2401}{9765625000000000}$$

Omil

$$\frac{7 ^ {4}}{2 ^ {9} \cdot 5 ^ {19}} = 2,458624 \times 10^{-13}$$