Réitigh d^2g/dt^2=-adg/dt-bdh/dt+fde/dt

$$\frac { d ^ { 2 } g } { d t ^ { 2 } } = - a \frac { d g } { d t } - b \frac { d h } { d t } + f \frac { d e } { d t }$$

Réitigh do a.

$$a\in \mathrm{R}$$

Céimeanna chun Cothromóidí Líneacha a Réiteach

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

$$\left(-a\right)\frac{\mathrm{d}(g)}{\mathrm{d}t}-b\frac{\mathrm{d}(h)}{\mathrm{d}t}+f\frac{\mathrm{d}(e)}{\mathrm{d}t}=\frac{\mathrm{d}(g)}{\mathrm{d}t^{2}}$$

Bain f\frac{\mathrm{d}(e)}{\mathrm{d}t} ón dá thaobh.

$$\left(-a\right)\frac{\mathrm{d}(g)}{\mathrm{d}t}-b\frac{\mathrm{d}(h)}{\mathrm{d}t}=\frac{\mathrm{d}(g)}{\mathrm{d}t^{2}}-f\frac{\mathrm{d}(e)}{\mathrm{d}t}$$

Cuir b\frac{\mathrm{d}(h)}{\mathrm{d}t} leis an dá thaobh.

$$\left(-a\right)\frac{\mathrm{d}(g)}{\mathrm{d}t}=\frac{\mathrm{d}(g)}{\mathrm{d}t^{2}}-f\frac{\mathrm{d}(e)}{\mathrm{d}t}+b\frac{\mathrm{d}(h)}{\mathrm{d}t}$$

Athordaigh na téarmaí.

$$-a\frac{\mathrm{d}(g)}{\mathrm{d}t}=\frac{\mathrm{d}(g)}{\mathrm{d}t^{2}}+b\frac{\mathrm{d}(h)}{\mathrm{d}t}-f\frac{\mathrm{d}(e)}{\mathrm{d}t}$$

Tá an chothromóid i bhfoirm chaighdeánach.

$$\text{true}$$

Bíonn sé seo fíor i gcás a.

$$a\in \mathrm{R}$$

Réitigh do b.

$$b\in \mathrm{R}$$

Céimeanna chun Cothromóidí Líneacha a Réiteach

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

$$\left(-a\right)\frac{\mathrm{d}(g)}{\mathrm{d}t}-b\frac{\mathrm{d}(h)}{\mathrm{d}t}+f\frac{\mathrm{d}(e)}{\mathrm{d}t}=\frac{\mathrm{d}(g)}{\mathrm{d}t^{2}}$$

Bain f\frac{\mathrm{d}(e)}{\mathrm{d}t} ón dá thaobh.

$$\left(-a\right)\frac{\mathrm{d}(g)}{\mathrm{d}t}-b\frac{\mathrm{d}(h)}{\mathrm{d}t}=\frac{\mathrm{d}(g)}{\mathrm{d}t^{2}}-f\frac{\mathrm{d}(e)}{\mathrm{d}t}$$

Cuir a\frac{\mathrm{d}(g)}{\mathrm{d}t} leis an dá thaobh.

$$-b\frac{\mathrm{d}(h)}{\mathrm{d}t}=\frac{\mathrm{d}(g)}{\mathrm{d}t^{2}}-f\frac{\mathrm{d}(e)}{\mathrm{d}t}+a\frac{\mathrm{d}(g)}{\mathrm{d}t}$$

Tá an chothromóid i bhfoirm chaighdeánach.

$$\text{true}$$

Bíonn sé seo fíor i gcás b.

$$b\in \mathrm{R}$$