Download values of the sine, cosine and tangent for the special angles

VALUES OF THE SINE, COSINE AND TANGENT FOR
THE SPECIAL ANGLES
sin 30o = 1
sin 45o = 1
2
cos 30o = 3
cos 45o = 1
2
tan 30o = 1
sin 60o = 3
2
cos 60o = 1
2
tan 45o = 1
3
NOTE THAT 1
2
= 2
2
2
2
tan 60o = 3
AND THAT 1
3
= 3
3
.
BECAUSE THIS IS A CALCULUS COURSE, WE
MEASURE ANGLES IN RADIANS. AMONG ANGLES
THAT WE USE FREQUENTLY ARE:
30o = π
45o = π
60o = π
6
4
3
radians
radians and
radians .
THUS, WE HAVE THE FOLLOWING:
( 6 ) = 12
cos (π ) = 3
6
2
sin π
and
( 6) = 1
tan π
3
( 4) = 1
cos (π ) = 1
4
sin π
= 3
(
)
3
2
2
and cos (π ) = 1
3
2
2
and sin π
( 4 ) = 1 and tan (π 3 ) =
tan π
3.