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Apply addition formulas
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Examples
Practice
Apply addition formulas
Use
sin
(
A
±
B
)
\sin(A \pm B)
sin
(
A
±
B
)
,
cos
(
A
±
B
)
\cos(A \pm B)
cos
(
A
±
B
)
,
tan
(
A
±
B
)
\tan(A \pm B)
tan
(
A
±
B
)
.