Простете израза

[Гост]

Отговора е - 1/с. Не го получавам.

[ammornil]

И аз не го виждам да е толкова...$\\[24pt]F=\left(\sqrt{a}+\dfrac{ab^{2}+c}{\sqrt{ab^{2}+c}} \right)\div\left(b\sqrt{a}+\sqrt{ab^{2}+c} \right), \quad (a, b, c) \in\mathbb{R}, \quad a>0, \quad ab^{2}+c>0, \quad b\sqrt{a}+\sqrt{ab^{2}+c}\ne{0} \\[12pt] F=\left(\sqrt{a}+\dfrac{(\sqrt{ab^{2}+c})^{2}}{\sqrt{ab^{2}+c}}\right)\cdot{}\dfrac{1}{\sqrt{ab^{2}}+\sqrt{ab^{2}+c}} \\[6pt] F=\dfrac{\sqrt{a}+\sqrt{ab^{2}+c}}{\sqrt{ab^{2}}+\sqrt{ab^{2}+c}}\cdot{}\dfrac{\sqrt{ab^{2}}-\sqrt{ab^{2}+c}}{\sqrt{ab^{2}}-\sqrt{ab^{2}+c}} \\[6pt] F=\dfrac{\sqrt{a}\sqrt{ab^{2}}-\sqrt{a}\sqrt{ab^{2}+c}+\sqrt{ab^{2}+c}\sqrt{ab^{2}}-(\sqrt{ab^{2}+c})^{2}}{ab^{2}-ab^{2}-c} \\[6pt] F=-\dfrac{ab-\sqrt{ab^{2}+c}(\sqrt{a}-\sqrt{ab^{2}}+\sqrt{ab^{2}-c})}{c}$

[Гост]

Трябва да му простим