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NAME ___________________________________________ DATE________________
INVERSE
TRIGONMETRIC FUNCTIONS
Use your EL
-
W535B and the law of sines and the law of cosines to find
the missing angle.
The law of sines is
sin
sin
sin
c
b
a
.
The law of cosines is
cos
2
2
2
2
ab
b
a
c
.
1.
Given
23
,
7
,
2
b
a
find
in grads.
___________________
2.
Given
94
,
21
,
34
c
a
grads, find
in radians.
___________________
3.
Given
5
,
4
,
3
c
b
a
find
in degrees.
___________________
4.
Given
17
,
24
,
40
c
b
a
find
in radians
___________________
5.
Given
13
,
12
,
5
c
b
a
find
in degrees.
___________________
22