4/7x*21= eching

$$\frac{ 4 }{ 7 } x \times 21=$$

Baholash

$$12x$$

Yechim qadamlari

\frac{4}{7}\times 21 ni yagona kasrga aylantiring.

$$\frac{4\times 21}{7}x$$

84 hosil qilish uchun 4 va 21 ni ko'paytirish.

$$\frac{84}{7}x$$

12 ni olish uchun 84 ni 7 ga bo‘ling.

$$12x$$

x ga nisbatan hosilani topish

$$12$$

Derivativ ifodasidan foydalanish qadamlari

\frac{4}{7}\times 21 ni yagona kasrga aylantiring.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{4\times 21}{7}x)$$

84 hosil qilish uchun 4 va 21 ni ko'paytirish.

$$\frac{\mathrm{d}}{\mathrm{d}x}(\frac{84}{7}x)$$

12 ni olish uchun 84 ni 7 ga bo‘ling.

$$\frac{\mathrm{d}}{\mathrm{d}x}(12x)$$

ax^{n} hosilasi – nax^{n-1}.

$$12x^{1-1}$$

1 dan 1 ni ayirish.

$$12x^{0}$$

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

$$12\times 1$$

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

$$12$$