# Trigonometric Equations

(Basic) Trigonometric Equations
The link to this series of videos is here.

And now the specifics…

1.   $\rhd$ Solving sinusoidal equations of the form $\sin(x) = d$. (6:10)
Sal finds the expressions that together give all solutions to the equation $\sin(x) = frac{1}{3}$.
2.   $\rhd$ Solving $\cos(\theta) = 1$ and $\cos(\theta) = -1$ using the graph of $\cos(x)$ (5:18)
3.   $\star$ Solve equations like $\sin(x) = d$ or $\cos(x) = d$ where $d$ is any number.
4.   $\star$ Solve equations of the type $a \ast \sin(bx+c) = d$ or  $a \ast \cos(bx+c) = d$