-15k^2/15k^3+45k^2 eching

$$\frac { - 15 k ^ { 2 } } { 15 k ^ { 3 } + 45 k ^ { 2 } }$$

Baholash

$$-\frac{1}{k+3}$$

Qisqa yechim qadamlari

Hali faktorlanmagan ifodalarni faktorlang.

$$\frac{-15k^{2}}{15\left(k+3\right)k^{2}}$$

Surat va maxrajdagi ikkala 15k^{2} ni qisqartiring.

$$\frac{-1}{k+3}$$

k ga nisbatan hosilani topish

$$\frac{1}{\left(k+3\right)^{2}}$$

Koeffitsient uchun derivativ qoidasidan foydalanish qadamlari

Har qanday ikki differensial funksiya uchun ikki funksiyaning koeffitsient hosilasi raqamlagichning hosila marotabasi maxraj minusi va barchasi kvadrat maxrajiga bo'lingan.

$$\frac{\left(15k^{3}+45k^{2}\right)\frac{\mathrm{d}}{\mathrm{d}k}(-15k^{2})-\left(-15k^{2}\frac{\mathrm{d}}{\mathrm{d}k}(15k^{3}+45k^{2})\right)}{\left(15k^{3}+45k^{2}\right)^{2}}$$

Polinomialning hosilasi bu uning shartlari hosilasining yig‘indisiga teng. Konstant shartning hosilasi 0. ax^{n} ning hosilasi nax^{n-1}.

$$\frac{\left(15k^{3}+45k^{2}\right)\times 2\left(-15\right)k^{2-1}-\left(-15k^{2}\left(3\times 15k^{3-1}+2\times 45k^{2-1}\right)\right)}{\left(15k^{3}+45k^{2}\right)^{2}}$$

Qisqartirish.

$$\frac{\left(15k^{3}+45k^{2}\right)\left(-30\right)k^{1}-\left(-15k^{2}\left(45k^{2}+90k^{1}\right)\right)}{\left(15k^{3}+45k^{2}\right)^{2}}$$

15k^{3}+45k^{2} ni -30k^{1} marotabaga ko'paytirish.

$$\frac{15k^{3}\left(-30\right)k^{1}+45k^{2}\left(-30\right)k^{1}-\left(-15k^{2}\left(45k^{2}+90k^{1}\right)\right)}{\left(15k^{3}+45k^{2}\right)^{2}}$$

-15k^{2} ni 45k^{2}+90k^{1} marotabaga ko'paytirish.

$$\frac{15k^{3}\left(-30\right)k^{1}+45k^{2}\left(-30\right)k^{1}-\left(-15k^{2}\times 45k^{2}-15k^{2}\times 90k^{1}\right)}{\left(15k^{3}+45k^{2}\right)^{2}}$$

Ayni daraja ko'rsatkichlarini ko'paytirish uchun ularning darajalarini qo'shing.

$$\frac{15\left(-30\right)k^{3+1}+45\left(-30\right)k^{2+1}-\left(-15\times 45k^{2+2}-15\times 90k^{2+1}\right)}{\left(15k^{3}+45k^{2}\right)^{2}}$$

Qisqartirish.

$$\frac{-450k^{4}-1350k^{3}-\left(-675k^{4}-1350k^{3}\right)}{\left(15k^{3}+45k^{2}\right)^{2}}$$

O'xshash hadlarni birlashtirish.

$$\frac{225k^{4}-9k^{2}}{\left(15k^{3}+45k^{2}\right)^{2}}$$