(5*10^-5)(15*10^-6) eching

$$( 5 \times 10 ^ { - 5 } ) ( 15 \times 10 ^ { - 6 } )$$

Baholash

$$\frac{3}{4000000000}=7,5 \cdot 10^{-10}$$

Yechim qadamlari

Ayni asosning daraja ko‘rsatkichlarini ko‘paytirish uchun ularning darajalarini qo‘shing. -5 va -6 ni qo‘shib, -11 ni oling.

$$5\times 10^{-11}\times 15$$

-11 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{100000000000} ni qiymatni oling.

$$5\times \frac{1}{100000000000}\times 15$$

\frac{1}{20000000000} hosil qilish uchun 5 va \frac{1}{100000000000} ni ko'paytirish.

$$\frac{1}{20000000000}\times 15$$

\frac{3}{4000000000} hosil qilish uchun \frac{1}{20000000000} va 15 ni ko'paytirish.

$$\frac{3}{4000000000}$$

Omil

$$\frac{3}{2 ^ {11} \cdot 5 ^ {9}} = 7,5 \times 10^{-10}$$