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Trigonometry Examples
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Trigonometry
Simplify ((1-cos(2x))/2)^2
(
1
−
cos
(
2
x
)
2
)
2
(
1
-
cos
(
2
x
)
2
)
2
Step 1
Apply the
product rule
to
1
−
cos
(
2
x
)
2
1
-
cos
(
2
x
)
2
.
(
1
−
cos
(
2
x
)
)
2
2
2
(
1
-
cos
(
2
x
)
)
2
2
2
Step 2
Raise
2
2
to the
power
of
2
2
.
(
1
−
cos
(
2
x
)
)
2
4
(
1
-
cos
(
2
x
)
)
2
4
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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