-3a^3+4a^2+2a-2020 eching

$$- 3 a ^ { 3 } + 4 a ^ { 2 } + 2 a - 2020$$

a ga nisbatan hosilani topish

$$2+8a-9a^{2}$$

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}.

$$3\left(-3\right)a^{3-1}+2\times 4a^{2-1}+2a^{1-1}$$

3 ni -3 marotabaga ko'paytirish.

$$-9a^{3-1}+2\times 4a^{2-1}+2a^{1-1}$$

3 dan 1 ni ayirish.

$$-9a^{2}+2\times 4a^{2-1}+2a^{1-1}$$

2 ni 4 marotabaga ko'paytirish.

$$-9a^{2}+8a^{2-1}+2a^{1-1}$$

2 dan 1 ni ayirish.

$$-9a^{2}+8a^{1}+2a^{1-1}$$

1 dan 1 ni ayirish.

$$-9a^{2}+8a^{1}+2a^{0}$$

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

$$-9a^{2}+8a+2a^{0}$$

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

$$-9a^{2}+8a+2\times 1$$

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

$$-9a^{2}+8a+2$$

Baholash

$$-3a^{3}+4a^{2}+2a-2020$$