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Problems
Prove:
sin
a
cos
b
+
cos
a
sin
b
=
sin
(
a
+
b
)
\sin a \cos b + \cos a \sin b = \sin(a + b)
sin
a
cos
b
+
cos
a
sin
b
=
sin
(
a
+
b
)
Mathematics
Problem
Prove:
sin
a
cos
b
+
cos
a
sin
b
=
sin
(
a
+
b
)
\sin a \cos b + \cos a \sin b = \sin(a + b)
sin
a
cos
b
+
cos
a
sin
b
=
sin
(
a
+
b
)
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