Use the given information about the angle 0 to find the exact value of each of the following.
a. sin 20
b. cos 20
c. tan 20
tan 0=
7
3
sin 0<0
a. sin 20 =
(Type an integer or a simplified fraction. Type an exact answer, using radicals as needed.)
b. cos 20 =
(Type an integer or a simplified fraction. Type an exact answer, using radicals as needed.)
c. tan 20 =
(Type an integer or a simplified fraction. Type an exact answer, using radicals as needed.) Zeros are supposed to be theta