-(4)divsqrt{(4)^2-4+1(2)} eching

$$- ( 4 ) \div \sqrt { ( 4 ) ^ { 2 } - 4 + 1 ( 2 ) }$$

Baholash

$$-\frac{2\sqrt{14}}{7}\approx -1,069044968$$

Yechim qadamlari

2 daraja ko‘rsatkichini 4 ga hisoblang va 16 ni qiymatni oling.

$$\frac{-4}{\sqrt{16-4+1\times 2}}$$

12 olish uchun 16 dan 4 ni ayirish.

$$\frac{-4}{\sqrt{12+1\times 2}}$$

2 hosil qilish uchun 1 va 2 ni ko'paytirish.

$$\frac{-4}{\sqrt{12+2}}$$

14 olish uchun 12 va 2'ni qo'shing.

$$\frac{-4}{\sqrt{14}}$$

\frac{-4}{\sqrt{14}} maxrajini \sqrt{14} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.

$$\frac{-4\sqrt{14}}{\left(\sqrt{14}\right)^{2}}$$

\sqrt{14} kvadrati – 14.

$$\frac{-4\sqrt{14}}{14}$$

-\frac{2}{7}\sqrt{14} ni olish uchun -4\sqrt{14} ni 14 ga bo‘ling.

$$-\frac{2}{7}\sqrt{14}$$