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Mathematics
Mathematics
Problem
Find the simplified value of
sin
(
α
+
β
)
+
sin
(
α
−
β
)
\sin(\alpha+\beta)+\sin(\alpha-\beta)
sin
(
α
+
β
)
+
sin
(
α
−
β
)
. a)
2
cos
α
sin
β
2\cos\alpha\sin\beta
2
cos
α
sin
β
b)
2
sin
α
cos
β
2\sin\alpha\cos\beta
2
sin
α
cos
β
c)
2
sin
α
sin
β
2\sin\alpha\sin\beta
2
sin
α
sin
β
d)
sin
α
cos
β
\sin\alpha\cos\beta
sin
α
cos
β
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