(1/2)^2+(-31/2div1/5*6/5) eching

$$( \frac { 1 } { 2 } ) ^ { 2 } + ( - 3 \frac { 1 } { 2 } \div \frac { 1 } { 5 } \times \frac { 6 } { 5 } )$$

Baholash

$$-\frac{83}{4}=-20,75$$

Yechim qadamlari

2 daraja ko‘rsatkichini \frac{1}{2} ga hisoblang va \frac{1}{4} ni qiymatni oling.

$$\frac{1}{4}+\frac{-\frac{3\times 2+1}{2}}{\frac{1}{5}}\times \frac{6}{5}$$

6 hosil qilish uchun 3 va 2 ni ko'paytirish.

$$\frac{1}{4}+\frac{-\frac{6+1}{2}}{\frac{1}{5}}\times \frac{6}{5}$$

7 olish uchun 6 va 1'ni qo'shing.

$$\frac{1}{4}+\frac{-\frac{7}{2}}{\frac{1}{5}}\times \frac{6}{5}$$

-\frac{7}{2} ni \frac{1}{5} ga bo'lish -\frac{7}{2} ga k'paytirish \frac{1}{5} ga qaytarish.

$$\frac{1}{4}-\frac{7}{2}\times 5\times \frac{6}{5}$$

-\frac{7}{2}\times 5 ni yagona kasrga aylantiring.

$$\frac{1}{4}+\frac{-7\times 5}{2}\times \frac{6}{5}$$

-35 hosil qilish uchun -7 va 5 ni ko'paytirish.

$$\frac{1}{4}+\frac{-35}{2}\times \frac{6}{5}$$

\frac{-35}{2} kasri manfiy belgini olib tashlash bilan -\frac{35}{2} sifatida qayta yozilishi mumkin.

$$\frac{1}{4}-\frac{35}{2}\times \frac{6}{5}$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{35}{2} ni \frac{6}{5} ga ko‘paytiring.

$$\frac{1}{4}+\frac{-35\times 6}{2\times 5}$$

\frac{-35\times 6}{2\times 5} kasridagi ko‘paytirishlarni bajaring.

$$\frac{1}{4}+\frac{-210}{10}$$

-21 ni olish uchun -210 ni 10 ga bo‘ling.

$$\frac{1}{4}-21$$

21 ni \frac{84}{4} kasrga o‘giring.

$$\frac{1}{4}-\frac{84}{4}$$

\frac{1}{4} va \frac{84}{4} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{1-84}{4}$$

-83 olish uchun 1 dan 84 ni ayirish.

$$-\frac{83}{4}$$

Omil

$$-\frac{83}{4} = -20\frac{3}{4} = -20,75$$