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Precalculus Examples
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Precalculus
Find the Value Using the Unit Circle arcsin(-1/2)
arcsin
(
−
1
2
)
arcsin
(
-
1
2
)
Step 1
The
unit circle
can be used to find the values for exact
angles
.
Not an exact value
a
r
c
s
i
n
(
−
1
2
)
a
r
c
s
i
n
(
-
1
2
)
(
(
)
)
|
|
[
[
]
]
√
√
≥
≥
7
7
8
8
9
9
≤
≤
°
°
θ
θ
4
4
5
5
6
6
/
/
^
^
×
×
>
>
π
π
1
1
2
2
3
3
-
-
+
+
÷
÷
<
<
∞
∞
,
,
0
0
.
.
%
%
=
=
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