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Mathematics
Mathematics
Problem
If
sin
x
=
1
2
\sin x = \dfrac{1}{2}
sin
x
=
2
1
and
x
x
x
is an acute angle, find
sin
3
x
\sin 3x
sin
3
x
. a)
0
0
0
b)
3
2
\dfrac{\sqrt{3}}{2}
2
3
c)
1
1
1
d)
1
2
\dfrac{1}{2}
2
1
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