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Mathematics
Mathematics
Problem
If
sin
x
=
−
3
7
\sin x = -\dfrac{3}{7}
sin
x
=
−
7
3
and
x
x
x
lies in the fourth quadrant, determine the value of
1
−
2
sin
2
x
1 - 2\sin^{2} x
1
−
2
sin
2
x
.
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