Réitigh (17)dD/dt=-ksqrt{D}

$$( 17 ) \frac { d D } { d t } = - k \sqrt { D }$$

Réitigh do k.

$$\left\{\begin{matrix}k=0\text{, }&D\geq 0\\k\in \mathrm{R}\text{, }&D=0\end{matrix}\right.$$

Céimeanna chun Cothromóidí Líneacha a Réiteach

Athraigh na taobhanna ionas go mbeidh na téarmaí inathraitheacha ar fad ar an taobh clé.

$$\left(-k\right)\sqrt{D}=17\frac{\mathrm{d}}{\mathrm{d}t}(D)$$

Athordaigh na téarmaí.

$$-\sqrt{D}k=17\frac{\mathrm{d}}{\mathrm{d}t}(D)$$

Tá an chothromóid i bhfoirm chaighdeánach.

$$\left(-\sqrt{D}\right)k=0$$

Roinn 0 faoi -\sqrt{D}.

$$k=0$$

Réitigh do D.

$$\left\{\begin{matrix}\\D=0\text{, }&\text{unconditionally}\\D\geq 0\text{, }&k=0\end{matrix}\right.$$