If
cos
(
x
+
π
6
)
+
sin
(
x
−
π
3
)
=
A
\displaystyle {\cos{{\left({x}+{\frac{{\pi}}{{{6}}}}\right)}}}+{\sin{{\left({x}-{\frac{{\pi}}{{{3}}}}\right)}}}={A}
cos
(
x
+
6
π
)
+
sin
(
x
−
3
π
)
=
A
, then
the number
A
=
\displaystyle {A}=
A
=
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