For each of the following problems, find all of the solutions without using a calculator. Use a graph or unit circle to support you
Subtract 2 from both sides and divide by
to solve for sin .
On a unit circle, find the two different times sin
1/2. To give all of the solutions, remember that every time you go around the circle, that value occurs again. Since there are radians in a circle, add to each solution. cos
Use the same method as part (a).
Use the same method as part (a). How is the tangent function different from the sine function?
Remember to check your answers with your calculator!