1+18ab+81a^2 eching

$$1 + 18 a b + 81 a ^ { 2 }$$

a ga nisbatan hosilani topish

$$18\left(9a+b\right)$$

Yig'indi uchun derivativ qoidasidan foydalanish qadamlari

Polinomialning hosilasi bu uning shartlari hosilasining yig‘indisiga teng. Konstant shartning hosilasi 0. ax^{n} ning hosilasi nax^{n-1}.

$$18ba^{1-1}+2\times 81a^{2-1}$$

1 dan 1 ni ayirish.

$$18ba^{0}+2\times 81a^{2-1}$$

2 ni 81 marotabaga ko'paytirish.

$$18ba^{0}+162a^{2-1}$$

2 dan 1 ni ayirish.

$$18ba^{0}+162a^{1}$$

Har qanday t sharti uchun t^{1}=t.

$$18ba^{0}+162a$$

Har qanday t sharti uchun (0 bundan mustasno) t^{0}=1.

$$18b\times 1+162a$$

Har qanday t sharti uchun t\times 1=t va 1t=t.

$$18b+162a$$

Baholash

$$81a^{2}+18ab+1$$