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Problem
Problem
Solve the system of equations
x
+
y
=
2
π
3
and
sin
x
sin
y
=
2
x+y = \frac{2\pi}{3} \text{ and } \frac{\sin x}{\sin y} = 2
x
+
y
=
3
2
π
and
sin
y
sin
x
=
2
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