Appendix 543 8 degree
30
=0.52 6
60
=1.0
90
= 1.6
120
-=2.1
135
-24
180 210
cos 0
2
2
J
*
tan 0
radiant approx.value
= 0.79
150
sin 0
2.6
57.39 . 4
240
4.2
270
4.7
0
undefined
-i--
——i--
—1
2
2
0
—1
0
J
3.7
225
1
Ii
iv=3.1 6
—
1
.
6
1
1
2
2
1
1
i: —1
-./ 1
\f
J 0
undefined
—
300
5.2
TL
315
755 4
L
330 360
.
6
= 5.8
2ir=6.3
iiL JTi
2 0
1
J
2 1
The values of the other ratios can be obtained from the identities csc0= —'---—,secO=---'--—,andcotO= —--— tan 0 cos 0 sin 0
—
0