Haqiqatan ham bu muammoni hal qilish uchun funktsiyani hosila ta'rifiga kiritish va ozgina algebra qilishdan boshqa ko'p ish yo'q.

\[f'\left( x \right) = \mathop {\lim }\limits_{h \to 0} \frac{{f\left( {x + h} \right) - f\left( x \right)}}{h} = \mathop {\lim }\limits_{h \to 0} \frac{{6 - 6}}{h} = \mathop {\lim }\limits_{h \to 0} \frac{0}{h} = \mathop {\lim }\limits_{h \to 0} 0 = 0\]

Demak, bu funksiyaning hosilasi,

\[\require{bbox} \bbox[2pt,border:1px solid black]{{f'\left( x \right) = 0}}\]