2(-sqrt{2})^2-(-sqrt{2})-1 eching

$$2 ( - \sqrt { 2 } ) ^ { 2 } - ( - \sqrt { 2 } ) - 1$$

Baholash

$$\sqrt{2}+3\approx 4,414213562$$

Yechim qadamlari

2 daraja ko‘rsatkichini -\sqrt{2} ga hisoblang va \left(\sqrt{2}\right)^{2} ni qiymatni oling.

$$2\left(\sqrt{2}\right)^{2}-\left(-\sqrt{2}\right)-1$$

\sqrt{2} kvadrati – 2.

$$2\times 2-\left(-\sqrt{2}\right)-1$$

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

$$4-\left(-\sqrt{2}\right)-1$$

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

$$4+\sqrt{2}-1$$

3 olish uchun 4 dan 1 ni ayirish.

$$3+\sqrt{2}$$