20*10^12*16*10^-19 eching

$$20 \times { 10 }^{ 12 } \times 16 \times { 10 }^{ -19 }$$

Baholash

$$\frac{1}{31250}=0,000032$$

Yechim qadamlari

Ayni asosning daraja ko‘rsatkichlarini ko‘paytirish uchun ularning darajalarini qo‘shing. 12 va -19 ni qo‘shib, -7 ni oling.

$$20\times 10^{-7}\times 16$$

-7 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{10000000} ni qiymatni oling.

$$20\times \frac{1}{10000000}\times 16$$

\frac{1}{500000} hosil qilish uchun 20 va \frac{1}{10000000} ni ko'paytirish.

$$\frac{1}{500000}\times 16$$

\frac{1}{31250} hosil qilish uchun \frac{1}{500000} va 16 ni ko'paytirish.

$$\frac{1}{31250}$$

Omil

$$\frac{1}{2 \cdot 5 ^ {6}} = 3,1999999999999997 \times 10^{-5}$$