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Trigonometry Examples
Popular Problems
Trigonometry
Find the Exact Value arctan(-1)
arctan
(
−
1
)
arctan
(
-
1
)
Step 1
The exact value of
arctan
(
−
1
)
arctan
(
-
1
)
is
−
π
4
-
π
4
.
−
π
4
-
π
4
Step 2
The result can be shown in
multiple
forms.
Exact Form:
−
π
4
-
π
4
Decimal Form:
−
0.78539816
…
-
0.78539816
…
t
a
n
−
1
(
−
1
)
t
a
n
-
1
(
-
1
)
(
(
)
)
|
|
[
[
]
]
√
√
≥
≥
°
°
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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