9k-11+2k-7-4k eching

$$9 k - 11 + 2 k - 7 - 4 k$$

Baholash

$$7k-18$$

Yechim qadamlari

11k ni olish uchun 9k va 2k ni birlashtirish.

$$11k-11-7-4k$$

-18 olish uchun -11 dan 7 ni ayirish.

$$11k-18-4k$$

7k ni olish uchun 11k va -4k ni birlashtirish.

$$7k-18$$

k ga nisbatan hosilani topish

$$7$$

Yig'indi uchun derivativ qoidasidan foydalanish qadamlari

11k ni olish uchun 9k va 2k ni birlashtirish.

$$\frac{\mathrm{d}}{\mathrm{d}k}(11k-11-7-4k)$$

-18 olish uchun -11 dan 7 ni ayirish.

$$\frac{\mathrm{d}}{\mathrm{d}k}(11k-18-4k)$$

7k ni olish uchun 11k va -4k ni birlashtirish.

$$\frac{\mathrm{d}}{\mathrm{d}k}(7k-18)$$

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

$$7k^{1-1}$$

1 dan 1 ni ayirish.

$$7k^{0}$$

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

$$7\times 1$$

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

$$7$$