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Mathematics
Mathematics
Problem
If
x
x
x
and
y
y
y
are acute angles, such that
cos
x
+
cos
y
=
3
2
\cos x + \cos y = \frac{3}{2}
cos
x
+
cos
y
=
2
3
and
sin
x
+
sin
y
=
3
4
\sin x + \sin y = \frac{3}{4}
sin
x
+
sin
y
=
4
3
, then the value of
sin
(
x
+
y
)
\sin(x + y)
sin
(
x
+
y
)
.
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