d/d2(2^3/2-2^7/7)= eching

$$\frac { d } { d 2 } ( \frac { 2 ^ { 3 } } { 2 } - \frac { 2 ^ { 7 } } { 7 } ) =$$

Baholash

$$-\frac{100d}{7d_{2}}$$

Yechim qadamlari

Ayni asosning daraja ko‘rsatkichini bo‘lish uchun maxrajning darajasini surat darajasidan ayiring. 3 dan 1 ni ayirib, 2 ni oling.

$$\frac{d}{d_{2}}\left(2^{2}-\frac{2^{7}}{7}\right)$$

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

$$\frac{d}{d_{2}}\left(4-\frac{2^{7}}{7}\right)$$

7 daraja ko‘rsatkichini 2 ga hisoblang va 128 ni qiymatni oling.

$$\frac{d}{d_{2}}\left(4-\frac{128}{7}\right)$$

4 ni \frac{28}{7} kasrga o‘giring.

$$\frac{d}{d_{2}}\left(\frac{28}{7}-\frac{128}{7}\right)$$

\frac{28}{7} va \frac{128}{7} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{d}{d_{2}}\times \frac{28-128}{7}$$

-100 olish uchun 28 dan 128 ni ayirish.

$$\frac{d}{d_{2}}\left(-\frac{100}{7}\right)$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{d}{d_{2}} ni -\frac{100}{7} ga ko‘paytiring.

$$\frac{-d\times 100}{d_{2}\times 7}$$

-100 hosil qilish uchun -1 va 100 ni ko'paytirish.

$$\frac{-100d}{d_{2}\times 7}$$

Kengaytirish

$$-\frac{100d}{7d_{2}}$$

Yechim qadamlari

Ayni asosning daraja ko‘rsatkichini bo‘lish uchun maxrajning darajasini surat darajasidan ayiring. 3 dan 1 ni ayirib, 2 ni oling.

$$\frac{d}{d_{2}}\left(2^{2}-\frac{2^{7}}{7}\right)$$

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

$$\frac{d}{d_{2}}\left(4-\frac{2^{7}}{7}\right)$$

7 daraja ko‘rsatkichini 2 ga hisoblang va 128 ni qiymatni oling.

$$\frac{d}{d_{2}}\left(4-\frac{128}{7}\right)$$

4 ni \frac{28}{7} kasrga o‘giring.

$$\frac{d}{d_{2}}\left(\frac{28}{7}-\frac{128}{7}\right)$$

\frac{28}{7} va \frac{128}{7} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{d}{d_{2}}\times \frac{28-128}{7}$$

-100 olish uchun 28 dan 128 ni ayirish.

$$\frac{d}{d_{2}}\left(-\frac{100}{7}\right)$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{d}{d_{2}} ni -\frac{100}{7} ga ko‘paytiring.

$$\frac{-d\times 100}{d_{2}\times 7}$$

-100 hosil qilish uchun -1 va 100 ni ko'paytirish.

$$\frac{-100d}{d_{2}\times 7}$$