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Trigonometry Examples
Popular Problems
Trigonometry
Find the Exact Value cos(90)
cos
(
90
)
cos
(
90
)
Step 1
The exact value of
cos
(
90
)
cos
(
90
)
is
0
0
.
0
0
c
o
s
(
9
0
)
c
o
s
(
9
0
)
(
(
)
)
|
|
[
[
]
]
√
√
≥
≥
°
°
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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