-4*3+8-(-20)/sqrt{(-4)^2+1} eching

$$\frac { - 4 \cdot 3 + 8 - ( - 20 ) } { \sqrt { ( - 4 ) ^ { 2 } + 1 } }$$

Baholash

$$\frac{16\sqrt{17}}{17}\approx 3,880570001$$

Yechim qadamlari

-12 hosil qilish uchun -4 va 3 ni ko'paytirish.

$$\frac{-12+8-\left(-20\right)}{\sqrt{\left(-4\right)^{2}+1}}$$

-4 olish uchun -12 va 8'ni qo'shing.

$$\frac{-4-\left(-20\right)}{\sqrt{\left(-4\right)^{2}+1}}$$

-20 ning teskarisi 20 ga teng.

$$\frac{-4+20}{\sqrt{\left(-4\right)^{2}+1}}$$

16 olish uchun -4 va 20'ni qo'shing.

$$\frac{16}{\sqrt{\left(-4\right)^{2}+1}}$$

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

$$\frac{16}{\sqrt{16+1}}$$

17 olish uchun 16 va 1'ni qo'shing.

$$\frac{16}{\sqrt{17}}$$

\frac{16}{\sqrt{17}} maxrajini \sqrt{17} orqali surat va maxrajini koʻpaytirish orqali ratsionallashtiring.

$$\frac{16\sqrt{17}}{\left(\sqrt{17}\right)^{2}}$$

\sqrt{17} kvadrati – 17.

$$\frac{16\sqrt{17}}{17}$$