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Trigonometry Examples
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Trigonometry
Verify the Identity 2sin(5x)cos(x)=sin(6x)+sin(4x)
2
sin
(
5
x
)
cos
(
x
)
=
sin
(
6
x
)
+
sin
(
4
x
)
2
sin
(
5
x
)
cos
(
x
)
=
sin
(
6
x
)
+
sin
(
4
x
)
Step 1
The provided
equation
is an
identity
.
2
sin
(
5
x
)
cos
(
x
)
=
sin
(
6
x
)
+
sin
(
4
x
)
2
sin
(
5
x
)
cos
(
x
)
=
sin
(
6
x
)
+
sin
(
4
x
)
is an
identity
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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