Solve a_{2}a_{4}=1

$$a _ { 2 } a _ { 4 } = 1$$

Solve for a_2

$$a_{2}=\frac{1}{a_{4}}$$

$$a_{4}\neq 0$$

Steps for Solving Linear Equation

The equation is in standard form.

$$a_{4}a_{2}=1$$

Divide both sides by a_{4}.

$$\frac{a_{4}a_{2}}{a_{4}}=\frac{1}{a_{4}}$$

Dividing by a_{4} undoes the multiplication by a_{4}.

$$a_{2}=\frac{1}{a_{4}}$$

Solve for a_4

$$a_{4}=\frac{1}{a_{2}}$$

$$a_{2}\neq 0$$

Steps for Solving Linear Equation

The equation is in standard form.

$$a_{2}a_{4}=1$$

Divide both sides by a_{2}.

$$\frac{a_{2}a_{4}}{a_{2}}=\frac{1}{a_{2}}$$

Dividing by a_{2} undoes the multiplication by a_{2}.

$$a_{4}=\frac{1}{a_{2}}$$