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sin
(
90
∘
−
A
)
sin
A
−
cos
(
90
∘
−
A
)
cos
A
\sin(90^\circ - A) \sin A - \cos(90^\circ - A) \cos A
sin
(
9
0
∘
−
A
)
sin
A
−
cos
(
9
0
∘
−
A
)
cos
A
Mathematics
Problem
sin
(
90
∘
−
A
)
sin
A
−
cos
(
90
∘
−
A
)
cos
A
\sin(90^\circ - A) \sin A - \cos(90^\circ - A) \cos A
sin
(
9
0
∘
−
A
)
sin
A
−
cos
(
9
0
∘
−
A
)
cos
A
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