Question

Find the given trigonometric function value.
sin(25π/3)

Answer 1

Simplest thing you can do is use a calculator? If you are trying to do it by hand you first need to draw the unit circle.

Answer 2

Then find out what quadrant 25pi/3 lies in.

Answer 3

Then using special angles put a negative or positive sign in front of your answer.

Answer 4

sin(pi/3) =>sqrt(3)/2

Answer 5

so 25/2?