(sqrt{1-0.19}+0.3^2-6/25)*(-3) eching

$$( \sqrt { 1 - 0.19 } + 0.3 ^ { 2 } - \frac { 6 } { 25 } ) \cdot ( - 3 )$$

Baholash

$$-2,25$$

Yechim qadamlari

0,81 olish uchun 1 dan 0,19 ni ayirish.

$$\left(\sqrt{0,81}+0,3^{2}-\frac{6}{25}\right)\left(-3\right)$$

0,81 ning kvadrat ildizini hisoblab, 0,9 natijaga ega bo‘ling.

$$\left(0,9+0,3^{2}-\frac{6}{25}\right)\left(-3\right)$$

2 daraja ko‘rsatkichini 0,3 ga hisoblang va 0,09 ni qiymatni oling.

$$\left(0,9+0,09-\frac{6}{25}\right)\left(-3\right)$$

0,99 olish uchun 0,9 va 0,09'ni qo'shing.

$$\left(0,99-\frac{6}{25}\right)\left(-3\right)$$

0,99 o‘nlik raqamni uning \frac{99}{100} kasrga o‘giring.

$$\left(\frac{99}{100}-\frac{6}{25}\right)\left(-3\right)$$

100 va 25 ning eng kichik umumiy karralisi 100 ga teng. \frac{99}{100} va \frac{6}{25} ni 100 maxraj bilan kasrlarga aylantirib oling.

$$\left(\frac{99}{100}-\frac{24}{100}\right)\left(-3\right)$$

\frac{99}{100} va \frac{24}{100} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{99-24}{100}\left(-3\right)$$

75 olish uchun 99 dan 24 ni ayirish.

$$\frac{75}{100}\left(-3\right)$$

\frac{75}{100} ulushini 25 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{3}{4}\left(-3\right)$$

\frac{3}{4}\left(-3\right) ni yagona kasrga aylantiring.

$$\frac{3\left(-3\right)}{4}$$

-9 hosil qilish uchun 3 va -3 ni ko'paytirish.

$$\frac{-9}{4}$$

\frac{-9}{4} kasri manfiy belgini olib tashlash bilan -\frac{9}{4} sifatida qayta yozilishi mumkin.

$$-\frac{9}{4}$$

Omil

$$-2,25$$