Trigonometry Worksheet
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1
2Period
Trigonometry Worksheet # I
8.4 day 1- assignment (13J
For #1-6, write the trig ratio as a fraction in simplest terms.
l . s in A=
2 . c osA:
d =' 12
C
3 . t a n A:
For # 7 - 12, write the trig ratio as a fraction in simplest form.
7 . sin R :
8. co sR =
9. t an R=
For # 13-18, use your calculator to find the value of the trig function.
13
cos72"
14.
sin l9o
T
o
0
fr
4. sin B =
5 . co s B:
6 . ta n B=
10. sin S =
1 1 . co s S =
1 2 . ta n S:
Round to four decimal places.
15.
tan 50"
b=9
16.
cos 27o
17.
sin 84o
18.
tan23"
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