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Trigonometry
hard
0:00.0
If
t
a
n
x
+
c
o
t
x
=
2
\\tan x + \\cot x = 2
t
an
x
+
co
t
x
=
2
, find
s
i
n
2
x
\\sin 2x
s
in
2
x
.
A
0.5
B
2
C
1
D
0
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