Solve sin(infty)=4

$$\sin ( \infty ) = 4$$

Solve for a

$$a=\frac{4}{N^{2}}$$

$$N\neq 0$$

Steps for Solving Linear Equation

Evaluate trigonometric functions in the problem

$$NaN = 4$$

Multiply N and N to get N^{2}.

$$N^{2}a=4$$

Divide both sides by N^{2}.

$$\frac{N^{2}a}{N^{2}}=\frac{4}{N^{2}}$$

Dividing by N^{2} undoes the multiplication by N^{2}.

$$a=\frac{4}{N^{2}}$$

Solve for N

$$N=\frac{2}{\sqrt{a}}$$

$$N=-\frac{2}{\sqrt{a}}\text{, }a>0$$